Dorsal nerve block is generally referred to as a dorsal nerve block of the penis, which involves cutting the penile nerve on the dorsal side of the cavernous muscle to reduce penile sensitivity. Dorsal nerve blocks are used clinically to treat primary premature ejaculation. To perform the procedure, first a local or semi-corporeal anesthesia is required, followed by making a small transverse incision on the back of the penis near the coronal sulcus. Then the dorsal penile nerve is located and finally its branches are selectively cut. The entire procedure is performed without touching the corpus cavernosum or the arterial vessels. The procedure is painless, bleeding is minimal, and most patients heal completely within 2-3 days. In addition, it is recommended that patients who need to do dorsal nerve block of the penis, go to the hospital in time, under the correct operation of the doctor to carry out the operation.