ComplicationsBy Mayo Clinic staff
A brain tumor can cause complications depending on the part of your brain that's affected. Complications can include:
- Weakness. A brain tumor can damage any part of the brain. But if the part of the brain involved happens to control strength or movement of an arm or leg, it could produce definite weakness in that part of the body. Weakness caused by a brain tumor can be very similar to that caused by a stroke.
- Vision changes. A brain tumor that damages the nerves that connect to the eyes or the part of the brain that processes visual information (visual cortex) can lead to vision problems, such as double vision or a reduced field of vision.
- Headaches. A brain tumor that causes increased pressure within the brain can cause headaches. These headaches can be severe and unrelenting and may be accompanied by nausea and vomiting. Headaches can be due to the tumor itself, or they can result from fluid building up in the brain (hydrocephalus). Most headaches aren't caused by brain tumors.
- Personality changes. Tumors in certain areas of the brain may cause personality changes or changes in behavior.
- Hearing loss. Brain tumors that affect the auditory nerves — especially acoustic neuromas — may cause hearing loss in the ear on the involved side of the brain.
- Seizures. A brain tumor can cause irritation to the brain that can result in a seizure.
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