Hereditary Colon Cancer

Who is at risk? What are the risks?

Colorectal Cancer: Although everyone has a chance of developing colon cancer at some point in their life, this chance is increased for people who belong to hereditary colon cancer families. Every son, daughter, sister, and brother of an individual affected by hereditary colon cancer is considered to be at "increased risk" for developing colon cancer. There is no absolute number that can be given- each person's individual risk is different depending on many factors, including your age, and which relatives are affected by cancer. It is important for you and your doctor to find out what your risk is, so that you can take steps to prevent colon cancer.

Endometrial Cancer: Women in families with this disease have an increased chance of developing cancer of the endometrium (lining of the uterus or womb). This cancer is treated by removing the uterus (a hysterectomy) and is usually found because of abnormal bleeding, either between menstrual periods or after menopause. Screening programs for endometrial cancer are being developed, so that this disease can be caught at an early stage when the chance of a cure is very high.

Other Types of Cancer: Everyone has a chance of developing cancer, regardless of their family history. However, for families with hereditary colon cancer, there may be an increased risk for cancer to develop in certain organs: the stomach, kidney, bladder, small bowel, and ovary.

Introduction and Definition
How can you tell if a family has hereditary colon cancer?
Who is at risk? What are the risks?
What can be done to prevent colorectal cancer in my family?
What if something is found during colorectal screening?
What happens after surgery?
What about genetic testing?
Is help available for my family?
Although the risk of getting these cancers may be slightly higher than in the general population, the actual risk of developing these cancers is still quite low. Again, it is important for you and your doctor to discuss your individual risks, and determine whether any screening might be beneficial.

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