PURPOSE Large groin defects may be created after inguinal lymphadenectomy for bulky metastatic penile cancer. We describe a new method of primary closure of a large groin skin defect. MATERIALS AND METHODS In 3 patients with large volume inguinal lymph node metastases with skin breakdown and secondary infection extensive inguinal lymphadenectomy was done with wide surgical excision of skin and subcutaneous tissue. The procedures resulted in a large groin defect. Sartorius muscle was transferred to cover the femoral vessels. An abdominal advancement cutaneous flap was placed for soft tissue and skin coverage of the wound. RESULTS Primary closure of a large skin defect was possible using an abdominal advancement flap. In all patients the wound healed primarily with good cosmesis. A single patient underwent postoperative external beam radiation therapy to the flap site with no untoward effect on graft survival. CONCLUSIONS Large groin skin defects can be closed primarily using an abdominal advancement flap. This technique may also be used for bilateral groin defects. Compared with other types of flaps advocated for this purpose the main advantages of the procedure are simplicity, lower morbidity and superior cosmetic results.