After squatting, you can’t straighten up your waist, which may be caused by prolonged immobilization, or it may be caused by lumbar dorsal fasciitis, lumbar intervertebral disc herniation and other diseases. 1. Lumbar dorsal fasciitis: the lumbar region is accompanied by pressure pain, which is obvious in climate change, and it is easy to pull and damage the lumbar ligaments and cartilage tissues after squatting, which leads to the inability to straighten up the waist. Anti-inflammatory and analgesic drugs such as Celecoxib can be used. 2. Lumbar disc herniation: at the same time, it may be accompanied by the symptoms of lower limb numbness and fatigue, which is caused by long-term low head and stooping labor, and at the same time, it is affected by genetic factors and congenital development. You can take ibuprofen to relieve the symptoms. Healthy people who squat for a long time, may be due to lumbar spine pressure, resulting in a period of time to appear straight back. It is recommended to pay attention to rest in general and avoid excessive activities or maintaining a flexed position for a long time. If the back pain is not very serious, it is recommended to rest sufficiently. If the symptoms of persistent back pain, go to the hospital in a timely manner, through the lumbar X-ray, MRI and other imaging tests to clarify the cause of the drugs need to follow the doctor’s instructions for rational application.