The causes of squatting and not being able to stand up include poor blood circulation, osteoarthritis of the knee joint and lumbar disc herniation. 1. Poor blood circulation: due to prolonged squatting, the blood in the lower limbs is blocked, resulting in paralysis of the nerves in the lower limbs, and then squatting and not being able to stand up will occur. 2. Osteoarthritis of the knee joint: also known as degenerative arthritis, will cause patients with uneven joint surfaces, especially patellofemoral arthritis, which affects the activities of the joints, and the phenomenon of squatting and not being able to stand up will occur. When the patellar cartilage degeneration is more serious, it may also cause local cartilage damage. 3. Lumbar intervertebral disc herniation: it can make the patient’s lower limb nerves sustained pressure, resulting in pain in the lower limbs, accompanied by numbness, weakness and other manifestations. When squatting for a long time, the phenomenon of not being able to stand up after squatting will occur, and at the same time, lumbar pain as well as lumbar spine activity restriction may also occur. It is recommended that when squatting can not stand up, should be examined to determine the cause of the cause of treatment under the guidance of physicians.