Poor waist is a very broad concept. It is recommended that patients should actively go to the hospital for relevant examinations, such as lumbar CT or MRI, to determine what specific diseases are in the waist and what causes the poor waist, and then carry out relevant treatment. It is a case of lumbar disc herniation, lumbar muscle strain, or lumbar spinal stenosis that causes the poor waist. After the bad waist happens, if it is caused by kidney deficiency, you can take medlar or peach kernels to relieve it. In case of poor waist, it is recommended that patients eat more chestnuts, or drink milk, yogurt, soybeans, sesame, melon seeds and peach kernels. For poor waist, eating is only one aspect, and the most important thing is treatment.