Lumbar pain and inability to bend over may be due to acute lumbar sprain, lumbar dorsal musculoskeletal fasciitis, lumbar muscle strain, lumbar intervertebral disc herniation and other diseases. 1. Acute lumbar sprain: usually due to lumbar muscle spasm, soft tissue insertion, joint disorders, dislocation and other conditions, and also related to moisture, poor posture and other factors. Patients often appear lumbar pain, activity limitation and other symptoms, which also manifested as lumbar pain can not bend. 2. Lumbar dorsal myofasciitis: the cause of the disease is not clear, considered with a history of trauma, decreased resistance, long-term poor posture and other factors. Patients often appear lumbar pain, pressure pain symptoms, and will also feel stiffness in the activities, can also appear in the case of back pain can not bend. 3. Lumbar muscle strain: usually due to acute injury is not healed, chronic inflammation, overwork and other conditions, and with sedentary, long-term lumbar weight bearing, smoking, drinking and other factors. Patients often appear lumbar pain symptoms, some patients can also be manifested as lumbar pain can not bend. 4. Lumbar intervertebral disc herniation: usually due to degeneration of the intervertebral discs, and is considered to be related to factors such as injury, pregnancy, heredity, acute trauma, and prolonged sedentary work. Patients often experience lumbar pain, radiating pain in the lower limbs, numbness and other symptoms, which can also be accompanied by reduced mobility of the lumbar spine, decreased muscle strength, muscle atrophy and other conditions, which can also be manifested as lumbar pain and inability to bend. In addition, bone fracture, bone spurs and other conditions can also induce the above symptoms, it is recommended that the patient consult a doctor in a timely manner to clarify the cause of the disease, and follow the doctor’s instructions for targeted treatment.