A member asked:

I have had a small looking black head under my breast for awhile, it is now a knot, what should i do?

A doctor has provided 1 answer
Dr. Robert Hartman answered

Specializes in Dermatology

Keratin plug: A black keratin plug is from an underlying epidermal cyst and is not serious. It can be easily removed surgically.

Answered 2/23/2018

5.1k views

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