that it increases penis size. While some internet forums claim significant gains, urologists warn that the practice carries substantial risks, including permanent injury. EVI Clinic Summary of Evidence and Reported Results Scientific Efficacy
Jelqing involves repeated, forceful stretching and "milking" of the penis, which can lead to permanent damage: jelqing before after results top
If you have average genetics (average collagen cross-linking, average testosterone), you can realistically expect: that it increases penis size