Are brain tumors asymptomatic?

Brain tumors can cause symptoms. The clinical manifestations of brain tumors, especially in the early stages, generally do not present obvious signs. As time progresses, patients may develop symptoms such as headache, dizziness, unsteady gait, and decreased appetite. Some patients may also experience epileptic seizures. Vomiting may occur in the morning or after breakfast. Other possible signs include increased head circumference, cracked-pot sound on percussion, diplopia (double vision), esotropia (inward turning of the eye), and changes in vision or visual fields.