The main reasons for the soreness of the waist and lower abdomen are: First, urinary stones. Patients may have soreness and discomfort in the waist and lower abdomen, which may be accompanied by nausea, vomiting, hematuria, as well as urinary tract infection manifestations such as urinary frequency, urinary urgency and urinary pain. The renal region may appear percussion pain during the examination, combined with urinary ultrasound, abdominal CT examination, etc., can be clearly diagnosed. According to the specific condition of the patient, extracorporeal lithotripsy or incision lithotripsy is feasible. Second, lumbar disc herniation. Patients may have lumbar pain, accompanied by lower limb pain, numbness, mostly caused by bending over and bearing weight, lumbar spine CT or MRI can be used to make a clear diagnosis.