You may become stupid after a brain hemorrhage. Cerebral hemorrhage refers to non-traumatic bleeding within the brain parenchyma. It is mainly caused by hypertension. Aneurysms, arteriovenous malformations, anticoagulant or antiplatelet therapy, blood disorders, primary and secondary intracranial tumors, vasculitis, smoky disease, venous sinus thrombosis, eclampsia, endometriosis and infections, and cerebral amyloid angiopathy can also lead to cerebral hemorrhage. Cerebral hemorrhage affects the cognitive function of patients, vascular cognitive impairment, and in severe cases, dementia, the occurrence of which is mainly related to the location of cerebral hemorrhage. If cerebral hemorrhage occurs in the frontotemporal lobe near the cerebral cortex, it is easy to affect the cognitive function, which may lead to the manifestation of dementia. On the other hand, hemorrhage in the basal ganglia and cerebellum can have no obvious cognitive dysfunction and will not become stupid. When brain hemorrhage occurs, you need to go to the hospital in time, and under the guidance of the doctor to actively carry out treatment to avoid cognitive impairment.