Dorsal nerve block is generally referred to as dorsal penile nerve block, which was once used in the treatment of premature ejaculation. Dorsal nerve block is used to treat premature ejaculation by cutting off some branches of the dorsal nerves near the coronary groove to reduce the transmission of nerve impulses to the head of the penis and raise the ejaculation threshold. However, because of individual differences, it is difficult to accurately grasp the number of cut off branches of the nerves during the operation, as more branches are likely to result in irreversible erectile dysfunction, while fewer branches will not achieve the therapeutic goal. Because of the high risk of surgery, dorsal nerve block has been excluded from the conventional treatment of premature ejaculation, and patients need to be careful in choosing this type of treatment. If you have premature ejaculation, you should go to a regular hospital in time.