Muscle weakness, exertion, soreness, localized pressure pain, limited range of motion, and decreased ability to work, while persistent pain, soreness, muscle stiffness, and dysfunction occur. The substance is an aseptic inflammatory disease, which mainly manifests as pain, tenderness and dysfunction in the affected area. The strain occurs in the muscles that govern the hyperactive or weight-bearing joints or in the ligaments that hold these joints together, especially at the attachment points of the muscles or ligaments to the bone. Prolonged and frequent repetition of a specific movement is a common cause of overload use. Lumbosacral pain is the main manifestation of lumbar muscle strain, often with local stiffness, and lumbar movement can be limited. Cold and overexertion can aggravate the symptoms and make them recur. The pain in the lumbosacral region is more intense during acute attacks, local muscle spasm on both sides of the lumbosacral region, lumbar movement is impaired, standing and walking are also affected. Lumbar muscle strain, lumbar disc herniation, lumbar spinal osteophytes and lumbar spinal stenosis are common diseases, which are collectively called lumbar muscle strain by the medical profession. The symptoms of muscle strain can vary depending on the type, and patients must pay attention to identifying them in order to obtain more accurate treatment in the future. The symptoms of muscle strain are mainly lumbar and lumbosacral pain, which is chronic and recurrent, and the nature of the pain is mostly dull or sore, which can be confined to one area or spread throughout the back, with a few patients experiencing stabbing or burning pain. The pain can change with climate change or the degree of exertion. Patients cannot insist on bending over and are often forced to stretch their backs or hit their backs with their fists to relieve the pain. 2, the symptoms of muscle strain of the lumbar spine osteophytes lumbar spine osteophytes to lumbar three, lumbar four is the most common, the symptoms of this type of muscle strain: lumbar spine and lumbar soft tissue soreness, swelling, stiffness, bending activity is limited. If the adjacent nerve root pressure can cause the corresponding symptoms, local pain, stiffness, posterior root neuralgia, numbness and other manifestations may appear. 3, the symptoms of muscle strain of lumbar disc herniation The symptoms of lumbar disc herniation are more complex, in addition to lumbar pain, can also appear lumbar activity limitation, lower limb numbness and intermittent claudication and other conditions. ①Lumbar pain is the first symptom that appears in most patients with lumbar disc herniation, and with the development of the disease, the pain may radiate to the legs, mostly as stabbing pain. Low back and leg pain can be aggravated after trauma, exertion or cold. ②The forward flexion and backward extension activities of the lumbar spine in patients with lumbar disc herniation are closely related to the degree of disc herniation. If the annulus fibrosus is not completely ruptured, the lumbar spine takes an anterior flexion position and posterior extension is limited. (iii) Numbness of the lower extremities is one of the symptomatic features of this type of muscle strain, which is mostly caused by compression of the proprioceptive and tactile fibers of the nerves by the disc tissue. The outer thigh is a common area of numbness, which can have a burning sensation when contacted by wearing clothing and pants, and the numbness can be aggravated by prolonged standing. The claudication that occurs in lumbar disc herniation is mostly intermittent, i.e. pain and weakness in the lower limbs after walking a certain distance, and the symptoms can be relieved after bending or squatting to rest, and can still continue walking. 4, the symptoms of muscle strain of lumbar spinal stenosis lumbar spinal stenosis can be secondary to lumbar osteophytes or lumbar disc herniation, lumbar pain and intermittent claudication are the main symptoms of such muscle strain. Patients with spinal stenosis often have many complaints but few signs, and the spinal deflection is not obvious on examination, the lumbar spine is normal, only posterior extension pain, and the straight leg raising test is normal or only moderate pulling pain. In a few cases, the compression of cauda equina and nerve roots affects the bowel and urine, and even causes incomplete paralysis of the lower limbs.