What Is a Dermoid Cyst? A dermoid cyst is an abnormal growth of non-cancerous tissue under the skin. These cysts may contain hair follicles, skin tissue, sweat, and oil. Sometimes cysts also contain ...
A dermoid cyst is a sac of cells containing tissues that are usually present on the skin’s surface. They form during fetal development and grow slowly, so a person may not notice them until late ...