Ingrown hair cysts happen when a hair follicle gets blocked, and the hair grows into your skin instead of out. You should never pop an ingrown hair cyst because it can cause infection and scarring. The cysts may go away on their own, but if they hurt, look red, or ooze pus, see a healthcare provider for treatment.

Ingrown hairs in the pubic area can form cysts — sacs of fluid beneath the skin. A person may notice a lump, possibly with a hair visible beneath it. It may also be itchy. Cysts often go away without treatment, but some require antibiotics or draining. An ingrown pubic hair cyst is usually no cause for concern.

An infected ingrown hair — also known as folliculitis — typically looks like a bump, a hard lump, or a cyst under the skin. It may contain pus. You can usually treat them at home. An infected ingrown hair happens when a hair is blocked from leaving the skin or newly emerged hair curls back into the skin, and the follicle becomes infected.

An ingrown hair lump occurs underneath the skin. It is often visible with a head that may turn red, yellow, or white in appearance. The lump or cyst can be painful and tender while touching. The lump appears as a small red bump over the skin. Most people know it as a razor bump. The medical term for ingrown hair lump is pseudofolliculitis.

An ingrown hair occurs when the hair grows downward instead of upward and becomes trapped under the skin. Ingrown hairs can cause cysts. Treatment options for these cysts include home remedies and medical treatment.