Local reactions, systemic reactions, adverse events, and serious adverse events: Moderna COVID-19 vaccine.Lymphadenopathy associated with the COVID-19 vaccine. Hyperinflammation with COVID-19: The key to patient deterioration? /science/article/pii/S2590170220300200?via%3Dihub Acute onset supraclavicular lymphadenopathy coinciding with intramuscular mRNA vaccination against COVID-19 may be related to vaccine injection technique, Spain, January and February 2021. MRI of patients infected with COVID-19 revealed cervical lymphadenopathy. CT imaging features of 2019 novel coronavirus (2019-nCoV). Does this patient have COVID-19? A practical guide for the internist. You can learn more about how we ensure our content is accurate and current by reading our editorial policy. Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. This triggers an immune response, which increases the production of white blood cells to fight the protein. The body recognizes the protein as a foreign substance. The vaccine contains pieces of mRNA, which make the body produce spike protein, a molecule that’s specific to SARS-CoV-2. This side effect is a natural response to the vaccine. The reaction is also commonly associated with Moderna vaccine, though it can happen with the Pfizer vaccine, too. The swollen lymph nodes typically appear 2 to 4 days after getting the vaccine. Local reactions are limited to a specific body part. A 2021 case report describes 20 people who developed swollen glands on their collarbone after the first or second dose.Īlso, according to a Food and Drug Administration (FDA) document, lymph node swelling in the armpit was the second most common local reaction.

In a 2021 article, 4 out of 80 people developed a swollen lymph node in the neck after receiving the first dose of the vaccine. It also develops near the arm that you received the vaccine. Typically, it occurs in the neck or armpit region. It’s possible to develop swollen lymph nodes after getting a COVID-19 vaccine.

Swollen lymph nodes after getting a COVID-19 vaccine

Swollen lymph nodes in the neck