The short answer
Brain tumor symptoms depend on the tumor's size and location. Common signs include new or changing headaches, seizures, nausea, vision or speech changes, balance problems, and changes in thinking or personality. Many of these have other causes.
Symptoms depend on where the tumor is and how big it is.
New or changing headaches are common, sometimes worse in the morning.
Seizures can be the first sign of a brain tumor in some people.
Other signs include nausea, vision or speech changes, weakness, and balance problems.
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The full explanation.
The simple version
Brain tumor symptoms depend on where the tumor is and how big it is, because different parts of the brain control different functions. Many symptoms can also be caused by other conditions, so tests are needed to find the cause.
Common signs
Possible signs and symptoms include:
- New or changing headaches, sometimes worse in the morning
- Seizures, sometimes as the first sign
- Nausea or vomiting
- Vision, hearing, or speech changes
- Weakness, numbness, or balance and coordination problems
- Changes in thinking, memory, or personality
Why symptoms vary
Because different regions of the brain control different abilities, a tumor's location determines which functions are affected. A tumor near the area that controls speech may affect talking, while one near the balance center may cause unsteadiness.
A brain tumor's symptoms depend on which part of the brain it affects.
When to see a doctor
Most headaches are not tumors, but see a doctor for a new or worsening headache pattern, a first-time seizure, ongoing nausea, or new problems with vision, speech, strength, balance, or thinking. Imaging, usually an MRI, is used to look for a cause.
Words to know
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Common questions
▸What symptoms do brain tumors cause?
Symptoms depend on the tumor's location and size. Common ones include new or changing headaches, seizures, nausea or vomiting, vision or speech changes, weakness or numbness, balance problems, and changes in thinking or personality.
▸Are headaches always a sign?
Headaches are common with brain tumors and may be worse in the morning or with coughing or straining, but most headaches are not caused by tumors. A new or changing pattern is more concerning.
▸Can a seizure be the first sign?
Yes. In some people, a seizure is the first sign of a brain tumor, especially a new seizure in an adult who has not had them before.
▸Why do symptoms vary so much?
Different parts of the brain control different functions, so a tumor's location determines which abilities are affected — for example, vision, speech, movement, or balance.
▸When should I see a doctor?
See a doctor for a new or worsening headache pattern, a first-time seizure, ongoing nausea, or new problems with vision, speech, strength, balance, or thinking.
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