Vomiting with increased intracranial pressure is characterized by jet-like vomiting, especially after meals, and sometimes leads to water and electrolyte disturbances. Vomiting is often accompanied by headache, especially when the headache is severe and jet-like vomiting is more likely to occur. Headache is also a common symptom of increased intracranial pressure. The headache worsens when the patient coughs hard or bends over, and is mostly distending in nature. If the patient’s intracranial pressure suddenly increases, it also affects the patient’s consciousness, leading to drowsiness, unresponsiveness and, in severe cases, coma and lethargy, and eventually death due to increased intracranial pressure, brain herniation and cerebral edema formation. There are many causes of increased intracranial pressure in patients, such as cranial injury, brain tumor, brain hemorrhage, etc.