Intracranial hypertension is a medical condition characterized by increased pressure within the skull. This pressure can affect the brain and spinal cord, potentially leading to serious complications. Common causes include brain tumors, head injuries, and certain medical conditions like idiopathic intracranial hypertension. Symptoms of intracranial hypertension may include headaches, vision problems, and nausea. If left untreated, it can result in permanent damage to the brain or vision loss. Diagnosis typically involves imaging tests, such as MRI or CT scans, and treatment options may include medications or surgical interventions to relieve pressure.