A benign ear growth is any abnormal growth on the ear that does not indicate cancer. It can be caused by many different conditions.
The most common type of benign ear growth is a cyst. A cyst is a closed sac that can be filled with matter. Cysts often form in the space behind the eardrum.
Benign ear tumors are another cause of a benign ear growth. These tumors come from the tissues that form the ear. A benign tumor is not cancer.
Some cysts may be due to inherited problems. Problems with the ear drainage tubes, chronic ear infections, or other ear inflammation can also cause cysts to develop. The cause for most benign ear tumors is not known.