My husband, age 62, had an accident at work. He fell 6 ft, backwards, bumped a forklift on the way down. After the fall he couldn't feel his legs at first, burning in his groin. Went to Dr, they took xrays, said he may have a fractured bone. Went in for a CT scan, results on Fri they say. He's in a lot of pain. Initially after accident he couldn't urinate for 18 hrs. Today he woke up and his scrotum is black! Aside from the obvious problems, any idea why his scrotum would turn black? thank you.