Open comedones

Blackheads are tiny, dark spots on the skin. They are caused by a small plug in the opening of a follicle (pore). Blackheads are also called open comedones. They are one type of acne, often on the face, chest and back.

Related conditions include:

Blackheads (comedones)

Blackheads, or open comedones, are common in acne. Clogged hair follicles reflect light irregularly to produce this black hue.