WHAT YOU NEED TO KNOW: What are epidermal inclusion cysts? Epidermal inclusion cysts are the most common skin cysts in adults. These cysts are usually round, firm lumps filled with a cheese-like material called keratin. They are also called epidermoid, keratin, or sebaceous cysts. They can be found almost anywhere on your body. The cysts are most common on the face, back, neck, chest, and around your ears. They can be caused by blocked hair follicle and oil gland ducts in your skin. Epidermal inclusion cysts may grow slowly but are not cancerous. How are the cysts treated? Treatment is not needed if you have no symptoms. The cysts can be opened and drained if the cysts become infected or cause problems. The cysts can grow larger and make it hard for you to sit or walk if they are on your legs or back. You may also need antibiotics if there is an infection. You may need surgery to remove the cyst completely. When should I contact my healthcare provider? - Your cyst becomes swollen, red, and painful.
- Your cyst is large and leads to trouble moving or a deformed area.
- You have questions or concerns about your condition or care.
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