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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Blister On Penis Shaft?

hi i get a small blister like thing under the skin ov the shaft of my penis after a period of around 10 minutes or so of an erection. When Im not aroused there is no sign of this lump. Do u know Wat this is and why it only appears after a prolonged erection?
posted on Fri, 14 Mar 2014
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