The dangers of dorsal nerve block: First, dorsal nerve block is a procedure that reduces penile sensitivity by cutting off the dorsal nerve of the penis to achieve delay, and its effectiveness and safety are highly controversial. Although a very small outpatient procedure, it usually takes only half an hour to complete. The surgery is minimally invasive, bleeding is minimal, and it is basically painless. However, the surgery is damaging to the body, and patients need to stay in bed for 3-5 days to rest, reduce heavy physical labor, and pay attention to clean hygiene around the genitals. Secondly, dorsal nerve block is to reduce the sensitivity of the dorsal nerve and prolong the ejaculation time so as to eradicate the phenomenon of premature ejaculation in patients. It is mainly to eradicate premature ejaculation by cutting off some sensory nerves at the back of the penis. In fact, premature ejaculation is more closely related to the sperm control center, and local surgery cannot solve the symptoms of premature ejaculation. Thirdly, after the completion of dorsal nerve block, it is usually necessary to take antibiotics and anti-inflammatory drugs for a period of time. If bacterial growth is not inhibited and inflammation is not eliminated in time, men’s penis will swell and patients will experience hematuria and difficulty in urination. The procedure is not yet performed in regular hospitals and is far from being ready to be promoted.