A member asked:

What can cause swollen lymph node behind the ear?

A doctor has provided 1 answer
Dr. John Garner answered

Specializes in Cardiology

A few things: Generally speaking, infection or inflammation cause swollen lymph nodes. In response to an infection, the lymph nodes increase production of immune cells to fight the infection, increasing their size and creating some tenderness in the process. Some certain types of cancers can also cause similar swelling. Simple blood tests can evaluate these possibilities, but the vast majority are not cancer.

Answered 8/11/2020

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