What is Cancer?

Cancer is the name given to a collection of related diseases. In all types of cancer, some of the body’s cells begin to divide without stopping and spread into surrounding tissues.
Cancer can start almost anywhere in the human body, which is made up of trillions of cells. Normally, human cells grow and divide to form new cells as the body needs them. When cells grow old or become damaged, they die, and new cells take their place.

When cancer develops, however, this orderly process breaks down. As cells become more and more abnormal, old or damaged cells survive when they should die, and new cells form when they are not needed. These extra cells can divide without stopping and may form growths called tumors.

Many cancers form solid tumors, which are masses of tissue. Cancers of the blood, such as leukemias, generally do not form solid tumors.

Cancerous tumors are malignant, which means they can spread into, or invade, nearby tissues. In addition, as these tumors grow, some cancer cells can break off and travel to distant places in the body through the blood or the lymph system and form new tumors far from the original tumor.

General Cancer

    How to Work With Your Health Insurance Plan

    There are ways to learn if your health plan covers routine patient care costs in a clinical trial. Here are ideas about who to contact for help, questions to ask, and information to collect and keep if you decide to take part in a trial.

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    Lasers in Cancer Treatment

    Laser light can be used to remove cancer or precancerous growths or to relieve symptoms of cancer. It is used most often to treat cancers on the surface of the body or the lining of internal organs.

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    Tumor Grade

    Tumor grade is the description of a tumor based on how abnormal the tumor cells and tumor tissue look under a microscope.

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    Aspirin to Reduce Cancer Risk

    In the United States, tens of millions of adults take aspirin to reduce their risk of heart attack or stroke. But studies over the last two decades have suggested that regular use of aspirin may have another important benefit: decreasing the risk of developing or dying from some types of cancer.

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Breast Cancer

    Symptoms of Breast Cancer

    Different people have different symptoms of breast cancer. Some people do not have any signs or symptoms at all. A person may find out they have breast cancer after a routine mammogram.

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    Breast Cancer Screening

    Screening is looking for cancer before a person has any symptoms. This can help find cancer at an early stage. When abnormal tissue or cancer is found early, it may be easier to treat. By the time symptoms appear, cancer may have begun to spread.

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