Restless legs syndrome is a kind of sensory-motor disorder that mainly involves the nervous system of the legs. Patients will experience indescribable discomfort in both lower limbs under resting condition, have a strong willingness to move the legs, and the symptoms are often aggravated at night when resting. I. Diagnosis: 1, double lower limb discomfort: patients in quiet, rest or sleep at night, especially in the deep part of the double lower limbs can be sore, numbness, swelling, pain and other discomfort, similar to ants, creeping sensation; 2, recurrent episodes: the patient sometimes must be localized massage, such as knocking, hitting, pounding, pinching the double lower limbs, the symptom can be appropriately relieved. Some patients need to get out of bed to walk, activity can be gradually relieved, after relief and then go to bed to rest can be repeated episodes; 3, affecting sleep: some patients in the onset of symptoms, may be sleepless all night, back and forth, affecting sleep, disturbing the rest, so the restless legs syndrome is also categorized as sleep disorders disease, diagnosis is mainly based on the patient’s symptoms. Differential diagnosis: 1. Periodic leg movements during sleep: clinical manifestation is that the patient often walks around during rest, or keeps moving his legs, and often tosses and turns when lying in bed. Especially in the early morning and at night, there is a crawling uncomfortable feeling in the deep part of the thighs, and both legs have uncomfortable symptoms, forcing the patients to frequently move both lower limbs; 2. Sedentary inability syndrome: it may be due to the patients’ long-term use of anti-psychotics, or the adverse reactions to tranquillizers, and sometimes even if a small amount of drugs can be uncomfortable symptoms can also occur, and in serious cases, the patients often stand up repeatedly and move their lower limbs back and forth, which is more pronounced at night than during the daytime. In severe cases, patients often stand up repeatedly, move their lower limbs back and forth, and have more obvious attacks at night than during the day.