The sebaceous cyst is a benign condition of the sebaceous glands located under the skin near the hair follicles and produce sebum, a substance that lubricates the skin. The cyst is created by the obstruction of the drainage duct of a sebaceous gland that continues to fill with sebum.

The sebaceous gland can grow anywhere on the body. It usually appears in areas such as the scalp, face, back but also in the axillary and inguinal folds.

It appears as a spherical and relatively soft swelling and there is often a visible point of contact (orifice) on the surface of the skin. In many cases, during the pressure, a sebum comes out that looks like melted cheese and has the smell of sweat. The cyst usually remains asymptomatic until it becomes inflamed and becomes red and swollen.

The treatment of the cyst is surgical. The removal is done under local anesthesia and can be performed in the doctor's office. In cases where it is inflamed and full of pus, it must be opened and emptied. A few weeks later when the acute phase is over and the cyst is smaller in size, it can be removed.