Lump behind the ear can have various causes, ranging in severity from 'troubling' to 'critical'. Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.
Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms. In order to diagnose lump behind the ear, we could:
|Enlarged Lymph Nodes||98%||Confirm|
|Vasectomy Side-Effects||4%||Ruled out|
|Lymphatic Congestion||1%||Ruled out|
|Infectious Mononucleosis||0%||Ruled out|
BEHIND EARS: Do you have any swollen or tender lymph nodes here?
Possible responses:→ Don't know
→ Yes, swollen but not tender
→ Yes, tender but not swollen
→ Yes, swollen and tender
Enlarged Lymph Nodes also suggests the following possibilities: