After a corona vaccination, there may be temporary swollen lymph nodes in the armpit and collarbone area. In women, this can quickly seem like a sign of breast cancer. But experts give the all-clear: The swelling is a normal reaction of the body.
The more people are vaccinated against the corona virus, the more side effects come to light. As reported by the “New York Times”, among others, doctors are increasingly finding swollen lymph nodes in patients who have just received a corona vaccination. Between eleven and 16 percent of those vaccinated are said to be affected, the actual proportion is probably higher. Since the swollen lymph nodes not only appear on the collarbone but also in the armpit area, women in particular are concerned about their routine breast palpation. A sign of breast cancer? no It is a completely normal reaction of the immune system.
A normal immune system response
«No need to panic,» reassures Dr. Constance D. Lehman, who has published several articles on the phenomenon. The swelling is a completely normal reaction of the immune system and occurs on the same side of the arm where the vaccination was administered. A side effect that is already known from other vaccinations, for example against the flu or the papillomavirus (HPV). The swellings are often so small that those affected do not even notice them.
Swollen lymph nodes go away on their own
The enlarged lymph nodes appear as white patches on breast scans, resembling tumors, which can indicate cancer. That’s why experts like Lehmann consider it all the more important to inform doctors and patients that lymph nodes swollen by a corona vaccination are harmless. And adds: «The small nodules usually disappear by themselves after a few weeks.»
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Breast scans do not get better until six weeks after vaccination
dr Lehmann recommends women who have just received a vaccination to postpone any upcoming breast scans by six weeks. «However, if you experience a lump in your armpit that persists for more than six weeks after your vaccination, you should tell your doctor.» People who have cancer and develop enlarged lymph nodes may need further testing.” It is also possible to inject the vaccine into the thigh to avoid swelling of the lymph nodes.