An<unk>  is a benign cyst, developed out of ectodermal tissue. Histologically, it is made of a thin layer of squamous epithelium.
It's very common for women and can be found on the major or minor labia.
Epidermoid cyst
Dermoid cyst
Nabothian cyst
Sebaceous cyst
Acrospiroma
Malignant acrospiroma
Trichoblastoma
Ganglion cyst