Patients with pain symptoms on the right side of the body, if it occurs suddenly, to consider that it is caused by acute cerebrovascular disease, such as cerebral infarction, transient ischemic attack, cerebral hemorrhage and other diseases. The lesions are all in the sensory center, usually in the left thalamus area, and then thalamic pain occurs. In this case, it is necessary to consult the hospital in time for neurological treatment, such as head CT or head MRI, to clarify whether it is hemorrhage or ischemic cerebrovascular disease, and then give symptomatic treatment. In patients with sequelae of cerebral infarction, for example, the right side of the limb is the diseased side, when the weather changes, the paralyzed side of the body is prone to pain or discomfort, and the symptoms are aggravated, which belongs to the re-exacerbation of sequelae of cerebral infarction.