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Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What causes painful pimples on shaft of penis?

Hi Dr, I recently had a few rigorous sessions of masturbation and the next day I had a number of clear-top pimples on the shaft of my penis where it is most exposed to rub during masturbation. The area under the pimples seems to be swollen and hard and slightly red. I have had it a number of times over the past few years, always after rigorous masturbation or sexual activity. The pimples are quite sore and sometimes i experience swelling in the glands in my groin. I tried popping them once and it was really painful and the glands in my groin swelled up quite a lot. Any idea what this could be? Ive had STI checks done recently and all came back negative.
Tue, 27 Jan 2015
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General Surgeon 's  Response
Hi. They are probably due to the friction of the masturbation. I suggest you use some moisturiser or jelly or emollient while doing it.
And you can decrease the frequency and rigorousness of the masturbation and you should be fine. It does not sound like an STD and is not any infection but to be sure you will need to see a Skin specialist if you are worried
Take care.
Dr Rishi, New Delhi, India.
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