Recently, people who have been vaccinated are sharing stories online about feeling lumps in their armpits, which might seem like cause for concern, but is in fact, to be expected. In a CDC report on the Moderna vaccine, the agency said that the swelling of lymph nodes, also known as lymphadenopathy, can occur in either the arm or the neck. And if you’re preparing for your shot, know that If You Take These OTC Meds, You Have to Stop Before Getting the Vaccine. According to the CDC’s report, these lumps typically appear two to four days after your vaccination, but only last about one to two days. Based on the CDC’s findings, this vaccine side effect is quite rare. “Reports of lymphadenopathy were imbalanced with 1.1 percent of persons in the vaccine group and 0.6 percent in the placebo group reporting such events,” the CDC notes. And for more vaccine news to know, find out why If You’re Over 65, You Shouldn’t Get This New Vaccine, Experts Warn. Purvi Parikh, MD, an immunologist with Allergy & Asthma Network and a co-investigator on COVID-19 vaccine trials at NYU, told Popsugar that swollen lymph nodes are just one way in which your body may show that it is building an immune response. There are immune cells in your lymph nodes that are activated by the vaccine, and the ones near your armpit may be the most prone to swelling because they’re typically the closest to your injection site, Parikh explained.ae0fcc31ae342fd3a1346ebb1f342fcb In fact, the U.S. Food and Drug Administration (FDA) says you should expect the possibility of “swollen lymph nodes in the same arm as the injection” for both the Moderna and Pfizer vaccines. And for more up-to-date COVID news delivered right to your inbox, sign up for our daily newsletter. According to Parikh, swollen lymph nodes are not one of the most common side effects, but it’s not one that should cause alarm. According to the CDC, the only instances in which you may need to contact your doctor or healthcare provider is if the redness or tenderness where you got the shot increases after 24 hours or “if your side effects are worrying you or do not seem to be going away after a few days.” And for more helpful tips from the CDC, discover why The CDC Doesn’t Recommend This One Type of Face Mask.
