What is jelqing is temporary, lasting only as long as the increased blood flow remains in the penis. There are no lasting or permanent benefits in terms of penis size, and jelqing can lead to injury if not done properly. If you’re concerned about penis size or sexual performance, it’s best to consult a healthcare provider for advice on safe, effective treatments. Over time, if performed incorrectly or with excessive force, jelqing can lead to injuries, including bruising, pain, and even nerve damage. These risks make it not only ineffective but potentially harmful. There is no scientific evidence supporting the idea that jelqing results in permanent penis enlargement. Any perceived gains are not sustained, and the technique does not alter the size of the penis in the long run.