Cold deficiency of the small intestine generally does not cause low back pain, except in rare individual cases, such as when malignant tumors of the intestines metastasize to the lumbar vertebrae or invade the abdominal lymph nodes close to the lumbar region, the patient will experience low back pain. The small intestine is located in the abdomen, and its main function is to receive sheng, materialize, and separate and secrete turbidity. Abdominal pain and abdominal distension are common in small intestine deficiency cold. In short, the symptoms of small intestine deficiency and cold are in the abdomen but not in the waist, and the correlation between small intestine deficiency and cold and low back pain is not significant. Common causes of low back pain include cold, dampness-heat accumulation (dampness and heat evils accumulate with each other in the body), qi stagnation and blood stasis (blood stagnation due to lack of qi flow), and kidney deficiency. The invasion of cold and dampness can lead to low back pain if you live in a humid environment for a long time or if you do not dry off your sweat in time. Cold and dampness lumbago, the evil Qi will turn into heat if it is stored for a long time, and finally evolve into dampness-heat lumbago. Bruises or lumbar qi and blood run poorly, can also lead to back pain. Chinese medicine believes that the waist for the kidney of the house, is the place of irrigation of kidney essence, chronic illness, old age, frequent sex will damage the kidney essence and lead to lumbago. If there are symptoms of discomfort, you need to go to the regular hospital in a timely manner.