A brain tumor is a mass or growth of abnormal cells in the brain or close to the brain. 

Many different types of brain tumors exist. Some brain tumors are benign, and some brain tumors malignant. Brain tumors can begin in the brain (primary brain tumors), or cancer can begin in other parts of the body and spread to the brain (secondary, or metastatic, brain tumors).

How quickly a brain tumor grows can vary greatly. The growth rate as well as location of a brain tumor determines how it will affect the function of the nervous system.

Brain tumor treatment options depend on the type of brain tumor, as well as its size and location.

The signs and symptoms of a brain tumor vary greatly and depend on the brain tumor's size, location and rate of growth. General signs and symptoms caused by brain tumors may include:

Secondary (metastatic) brain tumors are tumors that result from cancer that starts elsewhere in your body and then spreads (metastasizes) to your brain.

In most people with primary brain tumors, the cause of the tumor is not clear. But doctors have identified some factors that may increase your risk of a brain tumor.

Risk factors include:

If it's suspected that there is a brain tumor, your doctor may recommend a number of tests and procedures, including:

Treatment for a brain tumor depends on the type, size and location of the tumor, as well as your overall health and your preferences.

Little research has been done on complementary and alternative brain tumor treatments. No alternative treatments have been proved to cure brain tumors. However, complementary treatments may help the patient to cope with the brain tumor and its treatment. Talk to the doctor about the options.

Coping and support

A diagnosis of a brain tumor can be overwhelming and frightening. It can make you feel like you have little control over your health. But you can take steps to cope with the shock and grief that may come after your diagnosis.