Numbness in the legs and feet is useful to be treated with a small needle knife. Little Knife is a kind of external treatment of Chinese medicine, which can perform the functions of needling and cutting at the same time. On the basis of traditional acupuncture to stimulate the meridian qi and dredge the qi and blood, small needle knife can directly loosen the adhesive tissue around the lesion, release the nerve and blood vessel compression, relieve muscle spasms, and have a certain therapeutic effect on patients with numbness of legs and feet caused by nerve compression. It should be noted that, such as diabetic patients, patients with lower extremity venous thrombosis disease, it is not recommended to use the knife treatment. Numbness of the legs and feet of patients, it is recommended to go to a regular hospital, under the guidance of a professional physician to identify the treatment, not to operate on their own, so as not to delay the condition.