Uterine Fibroids: Should I Have Surgery?

Uterine Fibroids: Should I Have Surgery?

You may want to have a say in this decision, or you may simply want to follow your doctor's recommendation. Either way, this information will help you understand what your choices are so that you can talk to your doctor about them.

Uterine Fibroids: Should I Have Surgery?

Get the facts

Your options

  • Have surgery to take out just your fibroids or to take out your uterus.
  • Don't have surgery. You can choose another treatment, such as over-the-counter pain medicine, hormones, or fibroid embolization.

This decision aid is for people who have decided to treat their uterine fibroids. Many fibroids do not need treatment.

Key points to remember

  • You might want to choose surgery if fibroids are making it hard for you to get pregnant or if you have other symptoms that affect your quality of life, and other treatments have not worked for you. There are two surgical treatments for fibroids: taking fibroids out of the uterus (myomectomy) and removing the uterus (hysterectomy).
  • After menopause, fibroids usually get smaller or go away. If you are close to menopause, you could take nonsteroidal anti-inflammatory drugs (NSAIDs) (such as ibuprofen or naproxen) for pain or have fibroid embolization. You also could try birth control hormones, get a certain type of IUD, or take hormone therapy (GnRH-a) for a limited time if you have bad symptoms.
  • If you want to get pregnant, taking out just the fibroids may improve your chance of getting pregnant. But this type of surgery may increase your risk for certain problems during pregnancy.
  • Taking out the uterus can cure uterine fibroids. But it's not a good choice if you want to get pregnant in the future. You can't get pregnant after your uterus is taken out.
  • Both types of surgery have short-term risks, such as blood loss and infection. Both surgeries also can cause scar tissue, which can cause pelvic pain and infertility.
FAQs

What are uterine fibroids?

Uterine fibroids are growths in or on the uterus. They are not cancer. Fibroids can grow on the inside of the uterus, within the muscle wall of the uterus, or on the outer surface of the uterus. They can change the shape of the uterus as they grow.

Over time, the size, shape, location, and symptoms of fibroids may change.

Your risk for uterine fibroids increases as you age, especially from your 30s and 40s through menopause. Most have mild or no symptoms. But fibroids can cause bad pain, bleeding, and other problems.

The cause of fibroids is not known. But the hormones estrogen and progesterone can make them grow. Your body makes the highest levels of these hormones during the years you have periods. After menopause, when hormone levels decrease, fibroids often shrink or disappear.

When do fibroids need to be treated?

Uterine fibroids usually need treatment when they cause:

  • Anemia from heavy fibroid bleeding.
  • Ongoing low back pain or a feeling of pressure in the lower belly.
  • Trouble getting pregnant.
  • Problems during pregnancy, such as miscarriage or preterm labor.
  • Problems with the urinary tract or bowels.

Depending on the reasons you need treatment, one type of treatment may work better for you than another.

What should you know about surgery to take out just the fibroids?

Myomectomy, which is surgery to take out just the fibroids, can decrease pain and other symptoms. It allows the uterus to be left in place.

Surgery can be done:

  • Through the vagina and into the uterus using a lighted scope.
  • Through a large cut in the belly.
  • Through several small cuts in the belly using a lighted scope. This is called a laparoscopy.
How well myomectomy works

Taking out fibroids decreases menstrual bleeding and pelvic pain from fibroids. It may improve your chances of getting pregnant.

Chance that fibroids can come back

Fibroids tend to grow back, unless you have your uterus taken out. New fibroids also can grow. Fibroids can return when surgery is done to take out just the fibroids. They are more likely to come back if you had many fibroids. Talk to your doctor about if your fibroids may be more likely to grow back.

Risks of myomectomy

Cutting into the uterine wall during this surgery may cause problems in a future pregnancy. During labor, the uterus might not work like it should. This could mean that you would need a cesarean delivery.

What should you know about surgery to take out the uterus?

Hysterectomy, which is surgery to take out the uterus, cures fibroids. But it's usually the last choice for treatment, because it's major surgery and it makes you unable to get pregnant. Having this surgery means that you will no longer have menstrual periods. The ovaries and fallopian tubes also may be taken out at the same time.

This surgery gives most people relief from their symptoms.

Talk to your doctor if you are not close to menopause (about age 50) and you're thinking about having your uterus and ovaries taken out. Having your ovaries removed may raise your risk for some long-term health problems, such as heart disease. These risks may be higher for people who are younger. The benefits of keeping your ovaries reduce as you age.

How well hysterectomy works

This surgery:

  • Relieves pain from fibroids.
  • Stops anemia from heavy and irregular vaginal bleeding.
  • May fix leakage of urine if it was caused by fibroids.
Chance that fibroids can come back

Fibroids do not grow back after your uterus is taken out.

Risks of hysterectomy

Most people don't have problems from this surgery. But possible long-term problems include:

  • Scar tissue that can cause pelvic pain.
  • Early menopause caused by a slow, early decline of the ovaries.
  • Weakness of the pelvic muscles and ligaments that support the vagina, bladder, and rectum. This can cause bladder or bowel problems.
  • Trouble urinating.
  • Pelvic pain. If you had pain before surgery, taking out your uterus may not relieve your pain.

What are the risks of having either surgery?

Most people do not have problems after either surgery to treat fibroids. But problems can include:

  • Rare problems, such as:
    • Infection.
    • Blood clots in the legs or lungs.
    • Scar tissue (also called adhesions).
    • Injury to other organs, such as the bladder or bowel.
    • A collection of blood at the surgical site.
    • Continued heavy bleeding.
    • Problems from the medicine used to make you sleep during surgery.
    • Severe blood loss that causes you to need more blood (transfusion).

Why might your doctor recommend surgery to treat fibroids?

Your doctor might suggest that you have surgery to take out just your fibroids if:

  • You want to treat your fibroids in a way that may make it possible for you to get pregnant later.

Your doctor might suggest that you have surgery to remove your uterus if:

  • You have bad symptoms and:
    • Other treatments have not helped.
    • You're not near menopause.
    • You don't plan to get pregnant.
    • There is a risk of cancer.

Compare your options

Compare

What is usually involved?

















What are the benefits?

















What are the risks and side effects?

















Have surgery to take out fibroids or your uterus Have surgery to take out fibroids or your uterus
  • You may take the hormone GnRH-a before surgery to shrink your fibroids.
  • You may have outpatient surgery, which means you would go home the same day. Or you may spend 1 to 4 days in the hospital after surgery.
  • Recovery can take from a few days to 6 weeks, depending on the type of surgery you have.
  • If you have your uterus taken out, you won't be able to get pregnant.
  • Either surgery can ease your pain and other symptoms.
  • Surgery to take out just your fibroids (myomectomy) may make it possible for you to get pregnant.
  • Surgery to take out your uterus (hysterectomy) will cure your fibroids.
  • Both surgeries have risks, some of which are rare. Risks include bleeding, infection, and scar tissue.
  • Cutting into the uterus to take out just the fibroids could cause a problem with how the uterus works in a future pregnancy.
  • Pelvic pain that you had before either surgery may not get better.
  • If you have just the fibroids taken out but not the uterus, the fibroids can grow back.
Don't have either surgery Don't have either surgery
  • You may take hormones (GnRH-a) to shrink the fibroids.
  • You can take nonsteroidal anti-inflammatory drugs (NSAIDs), take birth control hormones, or get a certain type of IUD to reduce pain and bleeding.
  • You may have other procedures such as fibroid embolization, endometrial ablation or magnetic resonance guided ultrasound.
  • You may choose to have surgery later if you change your mind.
  • You may be able to control your symptoms without surgery.
  • If you have bad symptoms and are close to menopause, you may be able to control your symptoms long enough to go through menopause.
  • You won't have the risks of surgery.
  • Your pain or other symptoms could get worse.
  • If fibroids are making it hard for you to get pregnant, NSAIDs and hormones won't help you get pregnant.
  • NSAIDs can cause bleeding and other problems in some people. Talk to your doctor before taking them.
  • GnRH-a therapy can have serious side effects, such as menopause symptoms and bone-thinning.
  • Fibroid embolization can have side effects such as infection and pain.

Personal stories about surgery to treat uterine fibroids

These stories are based on information gathered from health professionals and consumers. They may be helpful as you make important health decisions.

Uterine fibroids made me miserable for a week to 10 days every month. My doctor talked with me about the discomfort and risks of a hysterectomy. She also said she might have to remove my ovaries. I had a hysterectomy, and my ovaries were removed. The first 2 weeks after the surgery were pretty rough, but my family and I managed. I now take estrogen every day. It's been a year since my surgery, and I feel great.

Cheryl, age 45

My periods were really painful about 5 years ago. I went to my doctor, and he asked a lot of questions about my periods and did an exam and some tests. When all the tests came back normal, he said uterine fibroids might be the cause of my pain. He said the only sure treatment for uterine fibroids was a hysterectomy. I didn't want to have surgery, so I asked if waiting a few months would be dangerous. He said waiting would be fine, and maybe I should try birth control pills and taking ibuprofen during my periods. After a few months, the pain eased up. I am glad I decided to wait and see if my pain decreased before having surgery.

Francine, age 42

I have large uterine fibroids and have had them since I was in my early 30s. They didn't cause any problems until I got pregnant with my first child. I went into labor about a month early, and my daughter had to spend several days in the intensive care unit. I would like to have one more child. My doctor has told me about a procedure called a myomectomy. He will be able to remove the uterine fibroids from my uterus without taking my uterus out. I won't have to have a large incision in my abdomen either. I am looking forward to having this done. We will wait several months and then try to have another child.

Terry, age 37

I was surprised when my doctor told me that uterine fibroids could be the cause of the pain I was having with my periods. I had never heard of uterine fibroids before. He told me all about uterine fibroids and the treatments I could try. When he said using ibuprofen for a few days right before my period starts and then for several days during my period might stop the pain, I thought I might as well try it. It took a couple of months of using this system, but now I hardly have any pain. I am glad that I did not have surgery.

Ginny, age 37

What matters most to you?

Your personal feelings are just as important as the medical facts. Think about what matters most to you in this decision, and show how you feel about the following statements.

Reasons to have surgery for fibroids

Reasons not to have surgery for fibroids

I'm having trouble getting pregnant because of fibroids, so I want to have them taken out.

Fibroids aren't keeping me from getting pregnant.

More important
Equally important
More important

I have so much bleeding and pain that I'm miserable part of every month.

I can control my symptoms with medicine.

More important
Equally important
More important

I want to do everything I can to treat my fibroids.

I don't want to have any surgery.

More important
Equally important
More important

I'm not close to menopause, and I can't stand my symptoms, so I want surgery.

I'm close to menopause, so I'd rather try hormones and pain medicine until menopause.

More important
Equally important
More important

My other important reasons:

My other important reasons:

More important
Equally important
More important

Where are you leaning now?

Now that you've thought about the facts and your feelings, you may have a general idea of where you stand on this decision. Show which way you are leaning right now.

Having surgery

NOT having surgery

Leaning toward
Undecided
Leaning toward

What else do you need to make your decision?

Check the facts

1, Surgery to take out just my fibroids will cure my problem.
2, Surgery to take out just my fibroids is the best choice if fibroids are keeping me from getting pregnant.
3, If I'm close to menopause, taking nonsteroidal anti-inflammatory drugs (NSAIDs) and maybe hormones may be all that I need to help my symptoms.

Decide what's next

1, Do you understand the options available to you?
2, Are you clear about which benefits and side effects matter most to you?
3, Do you have enough support and advice from others to make a choice?

Certainty

1. How sure do you feel right now about your decision?

Not sure at all
Somewhat sure
Very sure

Your Summary

Here's a record of your answers. You can use it to talk with your doctor or loved ones about your decision.

Your decision  

Next steps

Which way you're leaning

How sure you are

Your comments

Your knowledge of the facts  

Key concepts that you understood

Key concepts that may need review

Getting ready to act  

Patient choices

Credits

Credits
Author Ignite Healthwise, LLC Staff
Clinical Review Board Clinical Review Board

All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
You may want to have a say in this decision, or you may simply want to follow your doctor's recommendation. Either way, this information will help you understand what your choices are so that you can talk to your doctor about them.

Uterine Fibroids: Should I Have Surgery?

Here's a record of your answers. You can use it to talk with your doctor or loved ones about your decision.
  1. Get the facts
  2. Compare your options
  3. What matters most to you?
  4. Where are you leaning now?
  5. What else do you need to make your decision?

1. Get the Facts

Your options

  • Have surgery to take out just your fibroids or to take out your uterus.
  • Don't have surgery. You can choose another treatment, such as over-the-counter pain medicine, hormones, or fibroid embolization.

This decision aid is for people who have decided to treat their uterine fibroids. Many fibroids do not need treatment.

Key points to remember

  • You might want to choose surgery if fibroids are making it hard for you to get pregnant or if you have other symptoms that affect your quality of life, and other treatments have not worked for you. There are two surgical treatments for fibroids: taking fibroids out of the uterus (myomectomy) and removing the uterus (hysterectomy).
  • After menopause, fibroids usually get smaller or go away. If you are close to menopause, you could take nonsteroidal anti-inflammatory drugs (NSAIDs) (such as ibuprofen or naproxen) for pain or have fibroid embolization. You also could try birth control hormones, get a certain type of IUD, or take hormone therapy (GnRH-a) for a limited time if you have bad symptoms.
  • If you want to get pregnant, taking out just the fibroids may improve your chance of getting pregnant. But this type of surgery may increase your risk for certain problems during pregnancy.
  • Taking out the uterus can cure uterine fibroids. But it's not a good choice if you want to get pregnant in the future. You can't get pregnant after your uterus is taken out.
  • Both types of surgery have short-term risks, such as blood loss and infection. Both surgeries also can cause scar tissue, which can cause pelvic pain and infertility.
FAQs

What are uterine fibroids?

Uterine fibroids are growths in or on the uterus. They are not cancer. Fibroids can grow on the inside of the uterus, within the muscle wall of the uterus, or on the outer surface of the uterus. They can change the shape of the uterus as they grow.

Over time, the size, shape, location, and symptoms of fibroids may change.

Your risk for uterine fibroids increases as you age, especially from your 30s and 40s through menopause. Most have mild or no symptoms. But fibroids can cause bad pain, bleeding, and other problems.

The cause of fibroids is not known. But the hormones estrogen and progesterone can make them grow. Your body makes the highest levels of these hormones during the years you have periods. After menopause, when hormone levels decrease, fibroids often shrink or disappear.

When do fibroids need to be treated?

Uterine fibroids usually need treatment when they cause:

  • Anemia from heavy fibroid bleeding.
  • Ongoing low back pain or a feeling of pressure in the lower belly.
  • Trouble getting pregnant.
  • Problems during pregnancy, such as miscarriage or preterm labor.
  • Problems with the urinary tract or bowels.

Depending on the reasons you need treatment, one type of treatment may work better for you than another.

What should you know about surgery to take out just the fibroids?

Myomectomy, which is surgery to take out just the fibroids, can decrease pain and other symptoms. It allows the uterus to be left in place.

Surgery can be done:

  • Through the vagina and into the uterus using a lighted scope.
  • Through a large cut in the belly.
  • Through several small cuts in the belly using a lighted scope. This is called a laparoscopy.
How well myomectomy works

Taking out fibroids decreases menstrual bleeding and pelvic pain from fibroids. It may improve your chances of getting pregnant.

Chance that fibroids can come back

Fibroids tend to grow back, unless you have your uterus taken out. New fibroids also can grow. Fibroids can return when surgery is done to take out just the fibroids. They are more likely to come back if you had many fibroids. Talk to your doctor about if your fibroids may be more likely to grow back.

Risks of myomectomy

Cutting into the uterine wall during this surgery may cause problems in a future pregnancy. During labor, the uterus might not work like it should. This could mean that you would need a cesarean delivery.

What should you know about surgery to take out the uterus?

Hysterectomy, which is surgery to take out the uterus, cures fibroids. But it's usually the last choice for treatment, because it's major surgery and it makes you unable to get pregnant. Having this surgery means that you will no longer have menstrual periods. The ovaries and fallopian tubes also may be taken out at the same time.

This surgery gives most people relief from their symptoms.

Talk to your doctor if you are not close to menopause (about age 50) and you're thinking about having your uterus and ovaries taken out. Having your ovaries removed may raise your risk for some long-term health problems, such as heart disease. These risks may be higher for people who are younger. The benefits of keeping your ovaries reduce as you age.

How well hysterectomy works

This surgery:

  • Relieves pain from fibroids.
  • Stops anemia from heavy and irregular vaginal bleeding.
  • May fix leakage of urine if it was caused by fibroids.
Chance that fibroids can come back

Fibroids do not grow back after your uterus is taken out.

Risks of hysterectomy

Most people don't have problems from this surgery. But possible long-term problems include:

  • Scar tissue that can cause pelvic pain.
  • Early menopause caused by a slow, early decline of the ovaries.
  • Weakness of the pelvic muscles and ligaments that support the vagina, bladder, and rectum. This can cause bladder or bowel problems.
  • Trouble urinating.
  • Pelvic pain. If you had pain before surgery, taking out your uterus may not relieve your pain.

What are the risks of having either surgery?

Most people do not have problems after either surgery to treat fibroids. But problems can include:

  • Rare problems, such as:
    • Infection.
    • Blood clots in the legs or lungs.
    • Scar tissue (also called adhesions).
    • Injury to other organs, such as the bladder or bowel.
    • A collection of blood at the surgical site.
    • Continued heavy bleeding.
    • Problems from the medicine used to make you sleep during surgery.
    • Severe blood loss that causes you to need more blood (transfusion).

Why might your doctor recommend surgery to treat fibroids?

Your doctor might suggest that you have surgery to take out just your fibroids if:

  • You want to treat your fibroids in a way that may make it possible for you to get pregnant later.

Your doctor might suggest that you have surgery to remove your uterus if:

  • You have bad symptoms and:
    • Other treatments have not helped.
    • You're not near menopause.
    • You don't plan to get pregnant.
    • There is a risk of cancer.

2. Compare your options

  Have surgery to take out fibroids or your uterus Don't have either surgery
What is usually involved?
  • You may take the hormone GnRH-a before surgery to shrink your fibroids.
  • You may have outpatient surgery, which means you would go home the same day. Or you may spend 1 to 4 days in the hospital after surgery.
  • Recovery can take from a few days to 6 weeks, depending on the type of surgery you have.
  • If you have your uterus taken out, you won't be able to get pregnant.
  • You may take hormones (GnRH-a) to shrink the fibroids.
  • You can take nonsteroidal anti-inflammatory drugs (NSAIDs), take birth control hormones, or get a certain type of IUD to reduce pain and bleeding.
  • You may have other procedures such as fibroid embolization, endometrial ablation or magnetic resonance guided ultrasound.
  • You may choose to have surgery later if you change your mind.
What are the benefits?
  • Either surgery can ease your pain and other symptoms.
  • Surgery to take out just your fibroids (myomectomy) may make it possible for you to get pregnant.
  • Surgery to take out your uterus (hysterectomy) will cure your fibroids.
  • You may be able to control your symptoms without surgery.
  • If you have bad symptoms and are close to menopause, you may be able to control your symptoms long enough to go through menopause.
  • You won't have the risks of surgery.
What are the risks and side effects?
  • Both surgeries have risks, some of which are rare. Risks include bleeding, infection, and scar tissue.
  • Cutting into the uterus to take out just the fibroids could cause a problem with how the uterus works in a future pregnancy.
  • Pelvic pain that you had before either surgery may not get better.
  • If you have just the fibroids taken out but not the uterus, the fibroids can grow back.
  • Your pain or other symptoms could get worse.
  • If fibroids are making it hard for you to get pregnant, NSAIDs and hormones won't help you get pregnant.
  • NSAIDs can cause bleeding and other problems in some people. Talk to your doctor before taking them.
  • GnRH-a therapy can have serious side effects, such as menopause symptoms and bone-thinning.
  • Fibroid embolization can have side effects such as infection and pain.

Personal stories

Personal stories about surgery to treat uterine fibroids

These stories are based on information gathered from health professionals and consumers. They may be helpful as you make important health decisions.

"Uterine fibroids made me miserable for a week to 10 days every month. My doctor talked with me about the discomfort and risks of a hysterectomy. She also said she might have to remove my ovaries. I had a hysterectomy, and my ovaries were removed. The first 2 weeks after the surgery were pretty rough, but my family and I managed. I now take estrogen every day. It's been a year since my surgery, and I feel great."

— Cheryl, age 45

"My periods were really painful about 5 years ago. I went to my doctor, and he asked a lot of questions about my periods and did an exam and some tests. When all the tests came back normal, he said uterine fibroids might be the cause of my pain. He said the only sure treatment for uterine fibroids was a hysterectomy. I didn't want to have surgery, so I asked if waiting a few months would be dangerous. He said waiting would be fine, and maybe I should try birth control pills and taking ibuprofen during my periods. After a few months, the pain eased up. I am glad I decided to wait and see if my pain decreased before having surgery."

— Francine, age 42

"I have large uterine fibroids and have had them since I was in my early 30s. They didn't cause any problems until I got pregnant with my first child. I went into labor about a month early, and my daughter had to spend several days in the intensive care unit. I would like to have one more child. My doctor has told me about a procedure called a myomectomy. He will be able to remove the uterine fibroids from my uterus without taking my uterus out. I won't have to have a large incision in my abdomen either. I am looking forward to having this done. We will wait several months and then try to have another child."

— Terry, age 37

"I was surprised when my doctor told me that uterine fibroids could be the cause of the pain I was having with my periods. I had never heard of uterine fibroids before. He told me all about uterine fibroids and the treatments I could try. When he said using ibuprofen for a few days right before my period starts and then for several days during my period might stop the pain, I thought I might as well try it. It took a couple of months of using this system, but now I hardly have any pain. I am glad that I did not have surgery."

— Ginny, age 37

3. What matters most to you?

Your personal feelings are just as important as the medical facts. Think about what matters most to you in this decision, and show how you feel about the following statements.

Reasons to have surgery for fibroids

Reasons not to have surgery for fibroids

I'm having trouble getting pregnant because of fibroids, so I want to have them taken out.

Fibroids aren't keeping me from getting pregnant.

             
More important
Equally important
More important

I have so much bleeding and pain that I'm miserable part of every month.

I can control my symptoms with medicine.

             
More important
Equally important
More important

I want to do everything I can to treat my fibroids.

I don't want to have any surgery.

             
More important
Equally important
More important

I'm not close to menopause, and I can't stand my symptoms, so I want surgery.

I'm close to menopause, so I'd rather try hormones and pain medicine until menopause.

             
More important
Equally important
More important

My other important reasons:

My other important reasons:

   
             
More important
Equally important
More important

4. Where are you leaning now?

Now that you've thought about the facts and your feelings, you may have a general idea of where you stand on this decision. Show which way you are leaning right now.

Having surgery

NOT having surgery

             
Leaning toward
Undecided
Leaning toward

5. What else do you need to make your decision?

Check the facts

1. Surgery to take out just my fibroids will cure my problem.

  • True
  • False
  • I'm not sure
You're right. Fibroids can grow back after surgery to take them out. The only cure for fibroids is surgery to take out your uterus (hysterectomy).

2. Surgery to take out just my fibroids is the best choice if fibroids are keeping me from getting pregnant.

  • True
  • False
  • I'm not sure
That's right. Surgery to take out fibroids is the best choice if you want to get pregnant. Surgery to take out your uterus would mean that you can't get pregnant.

3. If I'm close to menopause, taking nonsteroidal anti-inflammatory drugs (NSAIDs) and maybe hormones may be all that I need to help my symptoms.

  • True
  • False
  • I'm not sure
You're right. Fibroids usually get smaller or go away after menopause. Taking nonsteroidal anti-inflammatory drugs (NSAIDs) and maybe hormones may help your symptoms until you go through menopause.

Decide what's next

1. Do you understand the options available to you?

2. Are you clear about which benefits and side effects matter most to you?

3. Do you have enough support and advice from others to make a choice?

Certainty

1. How sure do you feel right now about your decision?

         
Not sure at all
Somewhat sure
Very sure

2. Check what you need to do before you make this decision.

  • I'm ready to take action.
  • I want to discuss the options with others.
  • I want to learn more about my options.
 
Credits
By Ignite Healthwise, LLC Staff
Clinical Review Board Clinical Review Board

All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

Note: The "printer friendly" document will not contain all the information available in the online document some Information (e.g. cross-references to other topics, definitions or medical illustrations) is only available in the online version.

Current as of: April 30, 2024

Author: Ignite Healthwise, LLC Staff

Clinical Review Board

All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.