Cysts are usually noncancerous and have a sac-like structure that can contain fluid, pus, or gas. Cysts are common and can occur anywhere on the body. Cysts are often caused by infection, clogging of sebaceous glands, or around earrings.
There are many different types of cysts. Most cysts are benign, or noncancerous. Whether a cyst needs treatment depends on a number of factors, including:
- Type of cyst
- Location of cyst
- Cyst is causing pain or discomfort
- Whether or not the cyst is infected
Cysts form for different reasons. They can be caused by
- Infections
- Inherited diseases
- Chronic inflammation
- Blockages in ducts
