Low back pain occurs after squatting for a long time and is most commonly associated with lumbar spine disorders such as lumbar muscle strain, third lumbar transverse synovial syndrome, or lumbar disc herniation. If the muscle pain is on both sides of the waist, it may be lumbar strain or third lumbar transverse process syndrome. In this case, the third lumbar transverse process syndrome is characterized by tension in the muscles of the lumbar region, and the pressure pain is more pronounced at the third lumbar transverse process. Another cause is lumbar disc herniation, the pain is usually in the middle of the lumbar spine at the intervertebral space location, if there is pain or pressure pain in this location, it is highly suspected to be lumbar disc herniation, if the diagnosis is clear, you must go to the hospital to check the lumbar spine CT or even MRI, basically can confirm the diagnosis. To rule out lumbar disc herniation, it is usually lumbar strain or third lumbar transverse synovial syndrome, usually you can do massage, massage, external ointment, the symptoms will slowly improve.