question: My friend has severe hip pain. He had an injury while riding a commerical mower that hit a hole at a high speed. The injury was 3 years ago. However, now he is having trouble walking and pain from the back of the hip to the front. He also had his colon removed 35 years ago. His surgeon made a pouch from his small intestine instead of having a colostomy bag. Now he has lots of gas and more frequent than usual bowel movements. Could the inflammation from the hip injury also be affecting the pouch? What tests would be used to diagnose these symptoms?