The human ejaculation process is accomplished through a series of coordinated actions of various parts of the urogenital tract and is an independent reflex activity. The afferent impulse comes from frictional stimulation of the glans penis, and after reaching a certain intensity (or threshold), it excites the low-level reflex center of the spinal cord in the lumbosacral segment via the afferent nerve, initiating the ejaculatory process. The whole ejaculation process is divided into two stages: Stage 1: The smooth muscles of the epididymis, vas deferens, prostate and seminal vesicles contract in a certain order to drive semen to the posterior urethra, while at the same time the sphincter of the bladder stem and the inner urethral opening contract to prevent semen from entering the bladder or urine from entering the urethra. Stage 2: The rhythmic contraction of the sciatic cavernosus and bulbocavernosus muscles and other perineal muscles in the perineum creates the impetus for ejaculation of semen, which allows semen to be smoothly discharged through the urethra. Ejaculation occurs at orgasm, usually after sufficient local stimulation in the erect state. However, ejaculation and erection are two completely independent parts of sexual excitement. Sometimes erection and local stimulation are not accompanied by ejaculation, while sometimes ejaculation can occur in the absence of local stimulation and erection by stimulating the ejaculatory center of the spinal cord. Clinical and life experience also shows that men can ejaculate without external stimulation and on the basis of fantasy, such as dreaming, and conversely fear and fantasy, etc. can also inhibit ejaculation. Rhythmic stimulation of the glans and penis is an important condition for the ejaculatory reflex. Without sufficient stimulation, it is not enough to excite the ejaculatory center of the spinal cord, and the ejaculatory process cannot be initiated and completed, which is an important reason why some men do not ejaculate during sexual intercourse. The first time you have sex, it is easy to ejaculate too quickly because of overexcitement. After a period of time, the excitability of both sides decreases and the situation of ejaculating too quickly can generally return to normal, so there is no need to worry too much. About 1/4-1/3 of married men have been or are always bothered by this to varying degrees. Most couples can quickly find a way to reach orgasm and harmonious sex together after gaining experience in sexual life through mutual understanding and adaptation some time after marriage. Over the years many scholars and experts have tried to develop a diagnostic criterion for premature diarrhea, but this diagnostic criterion is difficult to determine. Because there are great differences between individual human beings, the speed, intensity and duration of response to the same stimulus are not identical. Some couples need only 3-5 minutes to achieve a mutually satisfying effect during sex, while some people are still unable to have an orgasmic experience for ten minutes. Zhejiang Medical University had a study of 2709 people in the process of sexual life, most of the duration of sexual intercourse for 5-10 minutes, the short 1-2 minutes, the long 50-60 minutes. The difference is so great that if a rigid standard is set, and if the duration of intercourse is less than 2 minutes or 3 minutes is regarded as premature ejaculation, a large number of normal people will definitely be classified as a disease. Here are some methods of self-treatment for patients for reference: 1. Improve local tolerance of stimulation: the method is to stop stimulation (both psychological and physical) immediately during sexual intercourse when you feel that the climax of excitement is coming and feel close to ejaculation, and to divert attention and stop penile activity, and then continue sexual intercourse after the climax of excitement has subsided. If necessary, this method can be repeated. This method is not easy to happen after a period of time, when the psychological and physical response has changed and the threshold of stimulation has increased. This method is effective for many people, and some men who are considerate of their wives, although they do not have premature ejaculation symptoms, also use this method to delay the time to wait for the arrival of each other’s orgasm. 2, pulling the scrotum and testicles method: this method is the practice, when the male is aware of the imminent ejaculation reaction, immediately hand holding the entire scrotum, pulling down, this method can also achieve the effect of reducing excitability and delaying ejaculation. This rather special method was discovered under the circumstances that it was discovered that when men are highly aroused and orgasmic, they see the scrotum contracting and testicles raising, so people take advantage of this physiological function and artificially press the scrotum and testicles towards the pubic bone with their hands to promote the arrival of sexual arousal. This method has prompted people to try pulling the scrotum and testicles in order to delay the entry of excitement, and has also been successful, avoiding premature ejaculation. 3, squeeze method: according to clinical treatment reflects that this squeeze method is effective. This method is simple, but requires the patient assistance and cooperation of the female partner, and the whole course of treatment varies from two or three months to six months. The pinching technique is that the woman puts her thumb on the tethered part of the penis, and her index and middle fingers on the other side of the penis (i.e., below the coronal edge of the glans), and presses it steadily for four seconds (i.e., the second hand of the watch beats four times), and then suddenly relaxes.