The hazards of lumbar curvature straightening include affecting the shape of the body, lumbar muscle strain, affecting the lower limb motor sensation and so on. 1. Affect the shape: lumbar curvature straightening refers to the straightening of the physiological curvature of the lumbar vertebrae, which will lead to the iliac bone backward, affecting the shape of the body. 2. Lumbar muscle strain: the physiological curvature of the lumbar spine becomes smaller, in the long run, the muscles of the lumbar back and lumbar intervertebral discs need to withstand more adverse stress, which will lead to discomfort in the lumbar back or even sacroiliac lumbar muscle strain or lumbar intervertebral disc herniation, which may affect daily life. 3. Affecting the movement of lower limbs: when there is obvious obvious lumbar pain and lower limb disseminated pain, it is suspected that the lumbar curvature is straightened, resulting in nerve compression, and may even affect the movement and sensation of limbs, and it is recommended to go to the hospital in time to do the examination, so as to be timely treatment through physiotherapy traction and other treatments. It is recommended to avoid sitting for a long time on weekdays, take proper exercise, less heavy lifting, and strengthen the protection of the lumbar region. Once there is low back pain and other symptoms timely medical treatment.