A small amount of subdural hemorrhage in the neonate’s cerebellum is usually not serious, but it is important to closely monitor the child’s condition and to have a regular review of the cranial CT. In a very small number of children, the disease may progress to moderate or even massive hemorrhage, and the prognosis may be poorer and more serious. Clinically, a small amount of cerebellar subdural hemorrhage in newborns may not have obvious symptoms, and a small number of them may cause vomiting, lethargy or irritability, but usually there is no epilepsy, limb hemiparesis, or impaired consciousness. If there are signs of vomiting and irritability, increased fontanel tension, etc., medications such as serpent venom hemocoagulase and vitamin K may be given to stop the bleeding, and cranial CT is needed to repeat the examination to know the intracranial situation if necessary. A small amount of subdural hematoma can be absorbed in about 2 weeks without obvious sequelae, so we say it is not serious. Although the amount of cerebellar subdural hemorrhage is relatively small, newborns are too young and weak to express and communicate, and sometimes their conditions may change very rapidly, so doctors, nurses, and parents need to closely observe the child’s condition to prevent accidents. If a newborn with a small amount of cerebellar subdural hemorrhage has frequent vomiting, seizures, hemiparesis, or coma, the condition of the newborn may worsen with increased bleeding, and an urgent review of the cranial CT is needed. Although the prognosis of neonatal cerebellar subdural hemorrhage is usually good and not serious, its treatment and observation process is still complicated. Therefore, it is recommended to go to a regular hospital for consultation and treatment by neonatologists and neurosurgeons.