Cerebral hemorrhage with coffee-colored vomit is mainly caused by gastrointestinal bleeding. The main reason why gastrointestinal bleeding occurs in cerebral hemorrhage is that cerebral hemorrhage causes increased intracranial pressure, and increased intracranial pressure leads to insufficient intracranial perfusion. When the cerebral perfusion is insufficient, it will cause the blood of other parts of the body to supply to the brain tissue, and the first manifestation is the gastrointestinal ischemic changes. Therefore, the gastric mucosa can easily cause damage, which leads to gastrointestinal bleeding. If the GI bleeding is more severe, it indicates that the degree of cerebral hemorrhage is also more severe. There is a positive correlation between them, so this kind of patients need to pay great attention. Because it indicates that the brain hemorrhage is more serious and usually needs to be treated by surgery.