Craniotomy is a surgical procedure that involves removing a portion of the skull to access the brain. This surgery is performed to treat various conditions such as brain tumors, traumatic brain injuries, aneurysms, or to relieve pressure from brain swelling. During the procedure, a section of the skull is removed and set aside, allowing the surgeon to operate on the brain. After addressing the underlying issue, the skull section is replaced and secured. The goal of craniotomy is to treat brain disorders, relieve symptoms, and improve overall brain function.