Most of the intracranial tumors have the manifestation of increased intracranial pressure, the main manifestation is the common “three main signs”, namely, headache, vomiting and optic nerve papilledema. The optic nerve papilledema is mostly due to unclear vision. However, tumors in different parts of the body have different clinical manifestations. Temporal lobe tumors can have seizures, parietal lobe tumors can have hemiparesis of the limbs, etc.