Patients with half of the body pain, the common clinical causes are mainly the following: a. Overexertion of one side of the limb can cause persistent contracture of local muscles, accompanied by more local accumulation of metabolic wastes such as lactic acid, and cause painful symptoms. Patients can give appropriate massage and physiotherapy to the painful side of the limb through adequate rest and warm water immersion to promote faster absorption of local lactic acid and other metabolic wastes, and the pain symptoms of most patients can be relieved on their own after 2-3 days without serious effects. Second, if the patient’s intracranial blood vessels are accompanied by abnormalities, it may also cause hemiplegia or activity disorder of one limb and numbness, pain and weakness. The nature of the intracranial lesion can be clarified by improving the magnetic resonance imaging or CT examination of the head, and the pain symptoms of one limb can be reduced by surgery and interventional treatment.