Whether or not hot compresses can be applied to lumbar pain should depend on the specific situation. Acute lumbar sprain and lumbar vertebral fracture acute period generally can not be hot packs; long-term lumbar muscle strain caused by chronic lumbar pain and lumbar vertebral fracture after the acute period can be localized hot packs. Acute lumbar sprain, lumbar spine fracture acute period is the peak of inflammatory material exudation, hot compresses will increase the local blood flow, resulting in an increase in inflammatory exudate, thus causing local swelling and pain obvious. Therefore, acute lumbar sprain and lumbar spine fracture acute period generally do not hot compress. For long-term lumbar muscle strain caused by chronic lumbar pain or lumbar spine fracture after the acute period of heat can promote local blood circulation, is conducive to the elimination of edema and the absorption of inflammatory substances; hot compresses can also alleviate the lumbar muscle spasm, thereby relieving lumbar pain. But for bone tumors, spinal tuberculosis and other causes of back pain, hot compresses can not effectively relieve pain symptoms. Therefore, patients with lumbar pain should go to the hospital in time to improve the examination and follow the doctor’s instructions after clarifying the cause of the disease.