Benign cysts are noncancerous lumps or growths in or near the ear.
Sebaceous cysts are the most common type of cysts seen around the ear. They are bulging, sac-like collections of dead skin cells and oils produced by oil glands in the skin.
They commonly occur:
Behind the ear
In the ear canal
In the earlobe
On the scalp
The exact cause is unknown, but cysts may occur when oils are produced in a skin gland faster than they can be released from the gland.
If the cyst or tumor is not painful and does not interfere with hearing, treatment is not necessary.
If a cyst becomes painful, it may be infected. Treatment may include antibiotics or removal of the cyst.