Leg numbness in sleep, commonly due to limb circulation disorders, lumbar disc herniation and other causes, as follows: First, limb circulation disorders: during the patient’s sleep, the legs are compressed by other limbs, which can cause blood circulation disorders, resulting in numbness symptoms in the legs. Through activities for a period of time and local massage treatment, will gradually ease the symptoms, or even disappear completely. Second, lumbar disc herniation: patients suffering from lumbar disc herniation, in the process of sleep, due to improper posture will induce acute attacks of disc herniation, patients can have lower limb numbness symptoms, accompanied by lumbar pain and lumbar spine activity restrictions, through the nuclear magnetic examination will find the degree of lumbar disc herniation and the degree of nerve compression, early treatment can make the leg numbness symptoms can be alleviated, including ultrashort wave therapy, lumbar traction, etc. Lumbar spine traction, etc. When numbness in the legs occurs in sleep, the appropriate treatment should be chosen according to the different causes.