Low back pain is most commonly associated with urological disorders, most commonly urinary stones along with secondary inflammation of the urinary tract, and even some people have hydronephrosis. If a hammer is used on both sides of the waist, it is medically called percussion pain, and if there is percussion pain, there may be hydronephrosis. The pain in the abdomen and waist, usually pay attention to whether there is hematuria, that is, the urine is red, there is no pain when urinating, if there is frequent urination, urinary urgency, painful urination is urinary tract infection, of course, there are also some people waist pain or abdominal organs caused, such as the organ behind the peritoneum pancreas, and even some abdominal cavity, intestinal lesions will also be manifested as abdominal lumbar pain, abdominal pain, lumbar pain, to go to the hospital to do urological ultrasound, blood and urine routine to do preliminary, Blood and urine routines to do preliminary screening.