New mammogram guidelines are announced by the Intermountain Healthcare doctors for women vaccinated for Covid-19 recently. This may be in response to the side effect of the vaccine.

If you have recently got vaccinated, then there are the chances you may have to reschedule yearly mammograms.

Dr. Brett Parkinson (MD of Intermountain Healthcare's Breast Care Centre) said, "When one receives a vaccination there is an inflammatory response in the arm,".

Doctors have observed swollen lymph nodes on screening mammograms of women who recently got vaccinated for COVID-19.

"Whenever we see these on a normal screening mammogram we call those patients back because it can either mean metastatic breast cancer which travels to the lymph nodes or lymphoma or leukemia."

No doubt, there are so many normal responses to vaccines and inflammation is one of them.

But, Dr. Parkinson says too many swollen lymph nodes are surprising and alarming.

"With the Moderna vaccine it's about 11% after the first dose and 16% after the second dose. We believe it's comparable for the Pfizer vaccine as well."

As per the new guidelines, women should get mammograms done before the 1st vaccine dose or they should wait 4 weeks after the vaccine's 2nd dose.

Dr. Parkinson says women should not avoid getting this test done if they feel a suspicious lump.