If left untreated, benign cysts get bigger and irritate; or get infected/rupture, which causes them to swell and become painful. The cyst fills with bacteria and pus, and becomes an abscess, which leads to be a bigger wound and more scarring.

It is generally best to get them removed before this happens and the scar from removal is far less noticeable.

Occasionally the lump or bump may be a lipoma which is a fatty lump slightly deeper in the skin that is also easily removed with minimal scarring.