Male, 27 years old, had a work-related injury in July 2010 in which the skin of the penis and part of the scrotum was avulsed, and the skin of the penis was badly avulsed in a circular pattern 1 cm below the coronal sulcus to the root of the penis, with a deep wound to the superficial fascia. The penile wound was covered with the original avulsed skin and a small amount of scrotal skin (the root part of the penis) and bandaged with 3-0 silk sutures. On the 5th postoperative day, the skin of the repaired section of the penis was found to be dark in color, stiff in texture, painless to touch, and no blood oozing from a fine needle prick, confirming skin necrosis. On the 7th postoperative day, under general anesthesia, the necrotic skin of the penis was trimmed away, the skin area of the left lower limb femur was taken 8×6 cm, the medium-thick skin was taken to the dermis, and the depth was about 0.6mm, the free skin piece was dermis-faced down and covered the traumatic surface of the penile defect, the excess skin piece was trimmed away according to the morphology of the defect area 30cm2, the free skin was intermittently sutured with 6-0 absorbable thread, the postoperative pressure bandage was applied, and the catheter was left in place. The stitches were removed 7 days after surgery, and 2 months after surgery, the skin of the repaired section of the penis was similar to the normal skin color and elasticity, and the patient had no abnormal erection.