Because ear cancer is so rare, it’s hard for researchers to determine exactly what causes it. Possible causes include:
Sun exposure: Skin cancers on the outer part of the ear are often caused by sun exposure or use of tanning beds. People with light skin are especially vulnerable to skin cancers, but anyone can get them.
Ear infections: Repeated or chronic ear infections may contribute to some ear cancers.
Age: Ear cancer is more common in older people, especially those in their 70s.