Many things: Get it checked out. Is it enlarging? Did he have it from birth? Could be a cyst, a sinus etc. Get it checked out
Answered 6/30/2015
2.6k views
Could be lymph node: This is the location of an enarged post auricular lymph node. It coudl be somethign else but you can clarify thsi with your pediatrician.
Answered 10/8/2017
2.6k views
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