Increased intracranial pressure (ICP) refers to a rise in pressure within the skull, which can affect the brain and its functions. This condition can occur due to various reasons, such as head injuries, brain tumors, or infections like meningitis. Symptoms may include headaches, nausea, vomiting, and changes in consciousness. When ICP rises, it can lead to serious complications, including brain damage or death if not treated promptly. Medical professionals often monitor ICP using devices like intracranial pressure monitors and may use medications or surgical interventions to relieve the pressure and protect brain health.