Neurology is divided into neurology and neurosurgery. For dizziness, headache, nausea, vomiting, numbness and weakness of the limbs, which are common in clinical practice, neurology should be consulted to confirm the diagnosis of the disease after CT or MRI of the head. For patients with head occupations, tumors, scalp masses or cerebral hemorrhage with a large amount of bleeding, neurosurgery is recommended, and neurosurgery will treat the patient through surgical or interventional methods. There are some diseases between neurology and neurosurgery, for example, brain hemorrhage is not large and can be treated conservatively, patients can consult neurology or neurosurgery, but they need to consult neurology to see the brain.