Lumbar muscle strain cannot be diagnosed by self-testing, and it is recommended that patients go to the hospital in time for diagnosis by combining clinical symptoms, physical examination and imaging tests. 1. Clinical symptoms: If there are symptoms such as increased pain on bending, pain on pressure, local muscle tension, stiffness, and limitation of lumbar activities, it may be lumbar muscle strain. 2. Physical examination: lumbar muscle strain is usually concentrated in the position of the lumbar belt, such as the most common side of the lumbosacral region, or the combination of the two sides of the lumbar region. If there is pressure and pain when touching, and the muscle nodules are like cords, it may be lumbar muscle strain. 3. Imaging: Patients with lumbar muscle strain can go to the hospital to be judged by X-ray and MRI of lumbar vertebrae, which are generally manifested as narrowing of lumbar spinal space and loss of lumbar vertebral physiological curvature. If patients are diagnosed with lumbar muscle strain, they should actively cooperate with the treatment so as not to aggravate the condition. Pay more attention to rest and avoid overwork.