Disclaimer: This information is for educational purposes only. Jelqing carries risks including bruising, nerve damage, scarring, and Peyronie’s disease. Consult a medical professional before attempting any PE (penile enhancement) technique. Jelqing is one of the oldest known penis enlargement exercises, originating from ancient Arabic and Middle Eastern techniques. It involves a repetitive "milking" or rolling motion of the thumb and forefinger up the penile shaft while semi-erect. The goal is to force blood into the corpora cavernosa (the two spongy chambers of the penis), theoretically expanding their capacity over time.