Lumbar hamstring strain, which we clinically call acute lumbar sprain, often occurs when bending over to carry heavy objects, or when twisting the waist, an acute lumbar muscle injury occurs. Its main manifestation is acute lumbar pain, which can be distributed in strips along both sides of the center of the spine, and sometimes there is an electric shock-like pain sensation. The pain is often worse when the patient bends over, and can be relieved when resting on his back. Sometimes the patient also feels very stiff in the lower back, which is due to the spasm of the damaged lumbar muscles, causing the feeling of stiffness of the lumbar muscles. This is due to the spasm of the damaged lumbar muscle, which causes the feeling of stiffness of the lumbar muscle. The treatment requires bed rest, a hard bed, and active use of anti-inflammatory, analgesic and muscle relaxant drugs.