Suddenly my back hurts so much that I can't stand up straight

Sudden back pain is severe, first of all to rule out whether it is acute lumbar sprain, if there is no trauma, may be related to lumbar disc herniation, urinary system stones. If accompanied by hematuria, urinary pain and other symptoms, it is recommended to urology examination clear, if there is no other discomfort can go to orthopedic examination.