What are the symptoms of a brain tumor?

SomeTrusted Source brain tumors do not cause any symptoms. However, other brain tumors can cause pressure inside the skull (intracranial pressure), resulting in symptoms such as headaches and seizures.

Seizures and headaches that worsen over time are common symptoms of a brain tumor. The American Cancer Society indicates that about 50% of peopleTrusted Source with a brain tumor will experience a seizure or a headache.

Other general symptoms include:

• nausea and vomiting
• blurred vision
• difficulty balancing
• changes in personality or behavior
• drowsiness

Medically reviewed by Susan W. Lee, DO

Dr. Susan W. Lee is an ABMS board certified neurologist with fellowship training in clinical neurophysiology. She currently practices in Los Angeles, California, and her subspecialty interests include the management of epilepsy and headache disorders.

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Depending on the location of the brain tumor, a person may develop more specific symptoms. For example:

• Weakness and numbness can occur if the tumor grows in the part of the brain that controls sensation or movement.
• Speech difficulties can develop if the tumor grows in the part of the brain that controls language.
• Vision problems can occur if the tumor develops near the optic nerve, around the pituitary gland, or in the occipital lobe.
• Hearing loss and facial weakness can develop if the tumor grows near the cranial nerves.
• Difficulties with coordination, swallowing, and synchronizing eye movement can develop if a tumor grows in the part of the brain that controls coordination.