Dr Saransh Jain, a world renowned sexologist based out of India, explained that the problem happens because 'when it's cold out, your body limits blood flow to extremities like fingers, toes, and yes - your penis to retain heat in your vital organs'.
When 'winter penis' takes hold, Dr Jain reveals that 'the shaft of the penis and testicles move closer to the body to maintain the optimal temperature for sperm production' and this is an evolutionary mechanism to protect sperm and testes.
Doctor warns of rise in bizarre 'winter penis' condition and tells men how to avoid it As cold weather is set to grip the east coast of America, doctors have warned men that they may be about to suffer difficulties in the bedroom.
A weather-related affliction known as 'winter penis' is caused by a sharp drop in temperature, which causes male genitals to shrink as a result of restricted blood flow to the area.
He said this reaction is known as vasoconstriction, and it causes your blood vessels constrict, which limits blood flow to your penis.
