The hazards of back pain when twisting are lumbar vertebrae fracture, lumbar vertebrae small joint dislocation, lumbar muscle strain, lumbar intervertebral disc herniation and so on. 1. Lumbar spine fracture: the elderly generally osteoporosis, pain when twisting, there may be a fracture of the lumbar spine. Excessive lumbar activities among young people may also lead to lumbar spine bone damage. 2. Dislocation of small joints of lumbar vertebrae: improper movement when twisting the waist will cause small joints of the upper and lower lumbar vertebrae to be dislocated, resulting in severe pain. Long-term wear and tear of the small joints can lead to instability of the lumbar spine. Improper twisting or strenuous exercise will lead to lumbar muscle injury, in addition to lumbar pain, lumbar muscle swelling can occur. 3. Lumbar muscle strain, lumbar intervertebral disc herniation: twisting can also lead to lumbar vertebral fibrous ring rupture and lumbar ligament, muscle injury, lumbar pain. As the lumbar region is damaged, the strength decreases, and the nucleus pulposus easily passes through the fibrous annulus rupture, resulting in lumbar disc herniation. There are many causes of back pain on the back side when twisting, and it is recommended to actively seek medical attention and physician guidance for diagnosis and treatment.