There are many causes of restless leg syndrome, such as pregnancy, iron deficiency anemia, peripheral neuropathy and in some patients, no clear cause. Therefore, it is important to find the cause of the disease and then use the appropriate treatment. 1. Pregnant: Pregnant women may experience restless legs syndrome after pregnancy, which manifests itself as a feeling of ants crawling on the legs or an itchy sensation when sleeping at night, resulting in the patient having to move the legs, and the symptom will be relieved only after a little movement. This situation may be in pregnancy, but this situation is not recommended to take medication, because the medication may have an impact on the fetus. 2. Iron deficiency anemia: Anemia patients may also have restless legs syndrome, but the specific mechanism is not particularly clear, if the anemia patients with restless legs syndrome, correcting anemia is a better treatment. 3. Restless legs syndrome is also common in elderly patients, such as Parkinson’s disease patients, may have restless legs syndrome. Patients like these are better suited to take dopamine agonists such as Senflo to relieve or eliminate the symptoms of restless legs syndrome. 4. Peripheral neuropathy: clinically, some patients with diabetes, vitamin deficiency, uremia are often complicated by restless legs syndrome, and many patients also have abnormal motor and sensory conduction velocity. Patients with restless legs syndrome are advised to go to the regular hospital in time, do not delay the condition.