Neurosurgery refers to the surgical specialty that is concerned with the diagnosis and surgical treatment of the nervous system including brain, spinal cord, spine, and nerves. Neurosurgery is performed by a physician called neurosurgeon. Neurosurgeons provide operative and non-operative care depending upon the nature of the injury or illness. Neurosurgery helps to treat patients with brain tumor, head and spinal cord injury due to accidents, neck and back pain, and patients with abnormal spinal fluid circulation. The types of neurosurgery include endovascular neurosurgery,oncological neurosurgery, stereotactic neurosurgery, craniotomy, and neuro-endoscopy.