Epidermoid cysts, also called sebaceous, keratin, or epithelial cysts, are small, hard lumps that develop under the skin. These cysts are common. They grow slowly. They do not cause other symptoms and are nearly never cancerous. Epidermoid cysts are often found on the face, head, neck, back, or genitals. They can range in size from 1/4 inch to 2 inches across. They look like a small bump, are tan to yellow in color, and are filled with thick, smelly matter. They do not cause any pain and can usually be ignored. To diagnose epidermoid cysts, a physician will examine the bump and surrounding skin, as well as take a medical history. They will ask for details on how long the bump has been present and whether it has changed over time. Physicians can usually diagnose an epidermoid cyst by examination only, but sometimes an ultrasound or a referral to a dermatologist is needed to confirm the diagnosis. This cyst was infected for a month and was so irritated that the contents can be seen already starting to evacuate before any procedure was initiated. About 1/2 cup of infected soft keratin was drained.
If it wasn't for getting my cyst removed, doctors would not have found I needed at pacemaker at 14.