Probably acne: The description sounds like a blackhead (also called an open comedone). That means the clump of skin cells is open to the outside air. The air reacts with the tip of the clump of skin cells so it darkens. Comedones can naturally occur in places such as the scalp, the face, the upper back, the upper chest, plus in and around pubic hair areas. Skin acne includes comedones.
Answered 4/26/2015
3.3k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question