Epidermoid (ep-ih-DUR-moid) cysts are harmless small bumps beneath the skin. They are most common on the face, neck and trunk. Epidermoid cysts are slow growing and often painless, so they rarely cause problems or need treatment. You might choose to have a cyst removed if it bothers you, breaks open, or is painful or infected.
Ovarian cysts are common. Most of the time, you have little or no discomfort, and the cysts are harmless. Most cysts go away without treatment within a few months. But sometimes ovarian cysts can become twisted or burst open (rupture). This can cause serious symptoms. To protect your health, get regular pelvic exams and know the symptoms that can signal what might be a serious problem.
Diagnosis Your healthcare professional will likely be able to tell whether your bump is an epidermoid cyst by checking the affected skin. A sample of your skin might be scraped off for study in a laboratory. Epidermoid cysts look like sebaceous cysts or pilar cysts, but they're different. True epidermoid cysts result from damage to hair follicles or the outer layer of skin, called the ...
Kidney cysts are round pouches of fluid that form on or in the kidneys. Often, kidney cysts are a type called simple kidney cysts. Simple kidney cysts aren't cancer and typically cause few problems. Other types of kidney cysts that happen with conditions such as polycystic kidney disease can impair ...
Diagnosis A cyst on your ovary can be found during a pelvic exam or on an imaging test, such as a pelvic ultrasound. Depending on the size of the cyst and whether it's filled with fluid or solid, your health care provider likely will recommend tests to determine its type and whether you need treatment.