Hormonal: or sexual stimulation or friction from bra. Sexual thoughts or feelings can also cause this as can temperature changes.
Answered 8/19/2016
1k views
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
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