Cold and back pain may be caused by viral toxins, anaerobic metabolism, and lumbar muscle strain. 1. Viral toxins: If the cold is caused by pathogens such as adenovirus, respiratory syncytial virus, rhinovirus, coronavirus and other infections. The body under the action of the virus will appear interleukin, leukotriene, bradykinin and other substances, the patient may have muscle pain, thus the symptoms of low back pain. 2. Anaerobic metabolism: some patients will have a fever when they have a cold, and at this time the body’s muscle tissue will carry out anaerobic respiration. This will lead to the accumulation of lactic acid in the body, which will cause generalized muscle pain, so the patient will have low back pain. 3. Lumbar muscle strain: When cold patients suffer from lumbar muscle strain, not only will there be lumbar pain, but also lumbar activity will be limited and so on. Cold back pain can also be caused by lumbar trauma, lumbar disc herniation and other diseases. It is recommended that patients who suffer from low back pain during a cold need to consult a doctor in time, and the doctor will choose the appropriate measures for the cause of the treatment.