In general, small amounts of basal ganglia area hemorrhage rarely leave sequelae, but it depends on the site of the hemorrhage. Basal ganglia hemorrhage includes the following sites: 1. Shell nucleus hemorrhage, which accounts for 50%-60% of basal ganglia hemorrhage, is mainly caused by the rupture of the lateral branch of the ductus arteriosus. Patients with hemorrhage of less than 20 ml have a good prognosis after treatment and rarely have sequelae. 2. Thalamic hemorrhage, a small amount of thalamic hemorrhage such as involvement of the middle ventral nucleus of the thalamus may result in motor tremor and Parkinson’s syndrome-like manifestations, and involvement of the nucleus accumbens or striatum may result in partial body Dance-throwing-like movements. Thalamic hemorrhage on the dominant side may present with thalamic aphasia, psychiatric disorders, cognitive impairment and varying degrees of personality disorders.3. Hemorrhage in the head of the caudate nucleus, which is relatively rare among hemorrhages in the basal ganglia region, is mostly caused by hypertensive atherosclerosis or rupture of vascular malformations, usually with small bleeding volume, symptoms of neurological deficits are rare, and the clinical prognosis is very good.