A skin cyst, cutaneous or epidermal cyst is a benign tumor of the skin.
It occurs most often on the face, ears, neck, neck, torso, and genitals.
They grow slowly, they are painless, but many patients choose to remove them either for aesthetic or practical reasons, because they are functionally disturbing where they are.
It usually appears as a lump under the skin, with a central black spot.
If the cyst breaks, inflammation develops under the skin, and it hurts while the patient may develop a fever.
When cells from the surface layer of the skin, the epidermis, penetrate a little deeper into the skin, they multiply and form the cyst wall and begin to produce keratin.
Keratin is the yellow viscous fluid contained in the cyst.
The complications of cutaneous cysts are few and are the following:
The cyst is surgically removed and must be entirely removed along with its wall, otherwise it relapses.
The simple puncture of the cyst with a needle temporarily relieves the symptoms, but it is almost certain that the cyst will come back.