The coldness of the back is most often caused by cold and dampness in the body, weakness, severe anemia and so on. People with a cold body are prone to cold abdomen and back and cold hands and feet, so pay attention to eating more of the following foods: mutton, beef, seafood, sea cucumber, leeks and so on for dietary supplements, and it is recommended to eat more fresh vegetables and fruits, such as apricots, peaches, papayas and so on, and also pay attention to keeping warm. Diseases of the lumbar spine such as lumbar back muscle strain, in addition to lumbar soreness and swelling may also cause cold back undershirt, cold may also cause the body to be afraid of cold back sweat, it is recommended to go to the hospital for a detailed examination to investigate the possibility of disease. At the same time strengthen physical exercise to enhance physical fitness, you can also eat more animal liver, mushrooms, silver fungus, fungus and other iron-containing foods.