Penis enlargement, or male enhancement, is any technique aimed to increase the size of a human penis. Some methods aim to increase total length, others the shaft’s girth, and yet others the glans size. Techniques include pills, hormones, massage, stretching, inflation, incision, injections, and implants. While some techniques are hoaxes, others may be somewhat effective, perhaps at high risk of complications.
Some surgical methods have the most evidence of effectiveness, whereas others have fairly frequent complications, sometimes severe, including scarring that lead, ultimately, to penis shrinkage or erectile dysfunction. Noninvasive methods have received little scientific study, and most lack scientific evidence of effectiveness, although scientific evidence supports some elongation by prolonged traction. Some quack products may improve penis erection, mistaken by consumers for penis enlargement.
Because of great risk and uncertainty, medical professionals are generally skeptical of penile enlargement and avoid attempting it. Medical doctors do treat micropenis as a medical condition, however, usually by surgery, which can be warranted to improve urinary or sexual function. Most men seeking penis enlargement have normal-size penises, and many may experience penile dysmorphophobia by underestimating their own penis size while overestimating the average size.