Chronic lumbar muscle strain is a common clinical disease. The main symptom is lumbar pain, which is aggravated by daytime exertion and can be alleviated after rest, and the muscle fibers can degenerate over time. A small number of tears form scars or fibrous cords or adhesions that leave long-term chronic low back pain. Non-surgical treatment is the main treatment, and surgical treatment can be performed if various non-surgical treatments are not effective. Causes of lumbar muscle strain: (1) acute lumbar sprain and long-term repeated lumbar muscle strain; (2) chronic lumbar muscle strain and climate and environmental conditions also have a definite relationship, the temperature is too low or humidity is too large can promote or aggravate the lumbar muscle strain; (3) untimely treatment of improper treatment; (4) long-term repeated excessive lumbar exercise and overload, such as long periods of sitting and standing or from the bent position to the upright position holding heavy objects Lifting objects can make the lumbar muscle in a long-term high-tension state, over time can lead to chronic lumbar muscle strain. The examination of lumbar muscle strain: X-ray examination: more than abnormal, a few can have osteophytes or spinal deformities, old or osteoporotic patients can choose to check the ECT bone density test, there are views that osteoporosis can also cause chronic low back pain. Diagnostic basis] The pressure pain in the low back is widespread, and the pressure points are mostly in the sacrospinous muscle, the transverse process of the lumbar vertebrae and the posterior edge of the iliac crest; lumbar muscle spasm: when palpated, the lumbar muscles are tense and spasmodic or there are hard nodes and hypertrophy; X-ray examination: a few patients may have congenital malformations and osteophytes in elderly patients, but the rest have no abnormal findings. Treatment of lumbar muscle strain: (1) avoid overwork, correct bad position; (2) appropriate functional exercise, such as lumbar back muscle exercise, to prevent muscle tension disorders; (3) medication: mainly anti-inflammatory and pain-relieving drugs and Chinese herbal medicine to relax tendons and activate blood; (4) closure therapy: those with fixed pressure points can use procaine plus prednisolone acetate or hydrocortisone acetate for painful point closure; (5) physical therapy and massage, etc. (6) surgical treatment, surgical treatment can be chosen for patients whose non-surgical treatment is ineffective.