There are many causes of painful ejaculation, which are mainly classified as organic, functional and psychological. The organic causes of ejaculation pain mainly include: vesiculitis, prostatitis, posterior urethritis, urinary tract stones, urinary tract tumors, etc.: the most common ones are epididymitis, prostatitis, vesiculitis, etc. Muscle contraction during ejaculation causes pain. Secondly, posterior urethral stones, urethral stricture obstruction can also cause pain, and stone obstruction and congenital obstruction in the ejaculatory duct can also cause painful ejaculation. Functional includes excessive frequency of sexual intercourse, especially after daytime intercourse, and pain in the perineum or scrotum. In addition, excessive sexual excitement and strong movements can also cause painful ejaculation. Psychological includes poor character, or because of some failure in sexual life, or some work pressure, etc., which leads to too much anxiety, resulting in too much ejaculation and inducing contraction of perineal muscles, mostly caused by nervous psychological factors. In addition, some penis heads are particularly sensitive. When the hand touches the glans, there is a painful sensation. It should be said that it has some relationship with psychological factors. To sum up, there are these kinds of causes of painful ejaculation, firstly, we should exclude infection inflammation tumor stone, and secondly, we can only consider functional or psychological factors.