The COVID-19 vaccines can cause swollen lymph nodes after the vaccine is administered. This is temporary. However, the enlarged lymph nodes can show up in a screening mammogram leading to a false positive finding. We recommend you schedule your screening mammogram either before receiving your first dose of the COVID-19 vaccine or 4 weeks after your second (final) dose.

If you're under 40; have breast implants; noticed changes/problems with your breast (or surrounding tissue/underarm); or it is less than 1 year since your last screening mammogram, please call 717-544-5941 for more information.