Many: A contact allergy, a fungal skin infection (fungus can produce melanin pigment), an area recovering from a recent burn etc. There are many potential answers.
Answered 1/5/2019
4.9k views
Uncertain: This can't be diagnosed with the information that is available. A history, physical examination & other studies may be needed to determine cause/causes.
Answered 10/31/2015
2.1k views
See doctor: and have it checked, diagnosed then it can be treated.
Answered 10/26/2015
2.1k 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
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