Urachal disorders are as uncommon as they are mysterious. Mastering the diagnostic and therapeutic approach of various urachal illnesses, as well as a better understanding of the embryological development of the urinary system, is critical for surgeons (urologists, pediatric surgeons, general surgeons, and general practitioners).

Fournier's gangrene, a rapidly progressive necrotizing fasciitis of the perineum and external genitalia remains a medical-surgical emergency. The authors present a case of coverage of a scrotal loss of substance with testicular exposure by a medial fasciocutaneous flap in a fifty years male patient.