Lumbar distension and discomfort are commonly caused by the following reasons: first, lumbar trauma: in the process of strenuous exercise, lumbar muscle sprain or lumbar fracture may occur, and patients will have severe congestion in the waist, local stiffness, swelling pain, and limited lumbar activity. The pain is usually severe, or even unable to maintain standing or sitting rest, Need to stay in bed or wear waist protection. Second, serious waist strain: if excessive exercise or heavy physical labor is carried out, it can lead to obvious congestion and stiffness of the waist muscles. The patient will have a sense of pain and distention in the waist, accompanied by weakness in the waist. After rest and hot compress, the clinical symptoms can completely disappear in a short time. Therefore, if the patient has the above symptoms, he or she needs to go to the orthopedic clinic in a timely manner, and be diagnosed with the cause after detailed physical examination by the orthopedic clinic doctor. Select the appropriate treatment according to the condition, so that the symptoms can be rapidly improved.