What are sebaceous cysts? Sebaceous cysts are more accurately
called epidermal cysts, although both terms have been used
interchangably. These cysts are typically harmless, slow-growing
bumps under the skin, often appearing on the scalp, face, ears,
trunk, back, or groin area. They can arise from a ruptured
follicle associated with acne, or be seen in a developmental
defect of a sebaceous duct, or from trauma to the area.
Sometimes they develop without clear explanation. The cysts
usually contain keratin, lipid, and other skin particles. Cysts
can remain stable or progessively grow. Sometimes they will
become inflamed or spontaneously rupture, which poses a risk for
infection Treatment for sebaceous cysts Sebaceous cysts may
resolve on their own, but tend to recur. Treatment is not
required unless it is the patient's preference. These cysts can
be injected with medicine to reduce inflammation and prevent the
need to drain them. Infected cysts, however, may require
incision and drainage by puncturing the top a