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Many different types of tumors can start in the brain or spinal cord. These tumors might cause different signs and symptoms, depending on where they are and how fast they are growing.
Signs and symptoms of brain or spinal cord tumors may develop gradually and become worse over time, or they can happen suddenly, such as with a seizure.
Tumors in any part of the brain might increase the pressure inside the skull (known as intracranial pressure). This can be caused by growth of the tumor itself, swelling in the brain, or blockage of the flow of cerebrospinal fluid (CSF). Increased pressure can lead to general symptoms such as:
Headaches that tend to get worse over time are a common symptom of brain tumors, occurring in about half of patients. (Of course, most headaches are not caused by tumors.)
As many as half of people with brain tumors will have seizures at some point. The type of seizure may depend on where the tumor is. Sometimes this is the first sign of a brain tumor, but fewer than 1 in 10 first seizures are caused by brain tumors.
Tumors in different parts of the brain or spinal cord can cause different symptoms. But these symptoms can be caused by any abnormality in that particular location — they do not always mean a person has a brain or spinal cord tumor.
The brain also controls functions of some other organs, including hormone production, so brain tumors can also cause many other symptoms not listed here.
Having one or more of the symptoms above does not necessarily mean that you have a brain or spinal cord tumor. All of these symptoms can have other causes. Still, if you have any of these symptoms, especially if they don’t go away or get worse over time, see your doctor so the cause can be found and treated, if needed.
Our team is made up of doctors and oncology certified nurses with deep knowledge of cancer care as well as journalists, editors, and translators with extensive experience in medical writing.
Dorsey JF, Salinas RD, Dang M, et al. Chapter 63: Cancer of the central nervous system. In: Niederhuber JE, Armitage JO, Doroshow JH, Kastan MB, Tepper JE, eds. Abeloff’s Clinical Oncology. 6th ed. Philadelphia, Pa: Elsevier; 2020.
National Cancer Institute Physician Data Query (PDQ). Adult Central Nervous System Tumors Treatment. 2020. Accessed at www.cancer.gov/types/brain/hp/adult-brain-treatment-pdq on February 11, 2020.
Wong ET, Wu JK. Overview of the clinical features and diagnosis of brain tumors in adults. UpToDate. 2020. Accessed at https://www.uptodate.com/contents/overview-of-the-clinical-features-and-diagnosis-of-brain-tumors-in-adults on February 11, 2020.
Last Revised: May 5, 2020