Face, neck, chest, upper back, scrotum, and genitals Eruptive vellus hair cyst A small, raised pimple-like bump containing vellus hairs (fine, blond hairs). Primarily on the chest but may affect ...

Ingrown hairs can cause a cyst, which is a fluid-filled lump. Home remedies and medical treatments may help manage an ingrown hair cyst. An ingrown hair occurs when the hair grows downward instead ...