‘Summer Penis’ Is Real: Doctors Agree That Heat May Make Men’s Penises Appear Larger

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‘Summer Penis’ Is Real: Doctors Agree That Heat May Make Men’s Penises Appear Larger

The internet has been abuzz about the idea that penises appear to be larger in the summer and smaller in the winter — ever since journalist Tracy Moore wrote about it earlier this month in a feature for MEL Magazine.

In her story, Moore explains that “summer penis” is a temporary fluctuation that, “thanks to heat and warmth, gives you a months-long leg-up on shaft size.”

“[W]hen it’s hot outside, you may take in more water, which may in combination with the sweating make it appear like your body or skin is bloated,” Dr. Jamin Brahmbhatt, a urologist with Orlando Health, told Moore. “And that may give you the perception that things are larger.”

Another urologist, Dr. Dudley Danoff, told Moore that the fluctuation is likely caused by vasodilation. “The warmer the ambient environment, the more the blood vessels dilate, and the warmth allowing vasodilation increases blood flow.”

The doctors emphasized that the fluctuations are temporary and essentially nothing more than an optical illusion.

But Dr. Mills said the phenomenon doesn’t hold true in all summer situations.

“Stick a guy in an ice cold lake in the middle of summer and his penis will shrink to winter size,” he said.

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