Back strains are mainly caused by frequent bending and lifting of heavy objects, resulting in tension in the muscles of the back, and after a long period of muscle tension when bending and lifting heavy objects, resulting in excessive muscle strain, which can easily cause strains. After the strain, a local sterile inflammatory lesion will be formed, which will stimulate the peripheral nerves and cause pain. In addition, the strain can also lead to damage to the small nerves within the muscle, which can cause significant pain, and when bending, the pain is intensified as the muscles are stretched again, leading to further stimulation of the injured location. After this situation, the muscles of the back should be fully relaxed to avoid further stretching, and anti-inflammatory and pain-relieving drugs should be applied to reduce the local inflammatory metabolism, increase blood circulation, and promote the absorption of inflammatory metabolites, and generally after 5-7 days, the treatment symptoms will be significantly controlled.