Neurosurgery, in other words, is the treatment of brain and nerve diseases, tumors originating from or pressing on the brain and spinal cord tissue, as well as head and spinal cord injuries, cerebrovascular occlusions and cerebral hemorrhages, especially waist and neck hernia, in the vessels feeding the brain and spinal cord. It is a branch of science that deals with the diagnosis and treatment of diseases such as aneurysms, that is, bubble formation. It is the section that surgically intervenes in diseases that affect many vital functions such as narrowing of the neck vessels and diseases that develop during the formation of the nervous system in newborns, epilepsy that does not respond to drug treatment, and selected Parkinson's cases. The dictionary meaning of neurosurgery, which is derived from the words neuron and surgery, is "healing nervous system wounds". Diseases seen in both adult and pediatric patient groups are diagnosed and treated in the brain and nerve diseases clinic.