Injury?: I would guess this is the result of minor injury from overly vigorous sex or masturbation. But see a doctor if it doesn't heal promply or if you otherwise remain concerned about it.
Answered 5/1/2017
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3 doctors weighed in across 2 answers
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
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