Difficult to say: This could be anything from a normal variant to being a result of scalp or systemic disease. Having an exam by a dermatologist will help determine what may be going on.
Answered 5/2/2015
4.3k views
Genetic or hormonal: Can be genetic or hormonal. Hard to tell without more information.
Answered 3/24/2014
4.3k views
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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