What are the chances of inheriting colon cancer?

Does colon cancer run in the family?

Cancers can “run in the family” because of inherited genes, shared environmental factors, or some combination of these. Having family members who have had adenomatous polyps is also linked to a higher risk of colon cancer.

What are the chances of getting colon cancer if your father had it?

If you have familial risk, a single first degree family member (parent or sibling) with colon or endometrial cancer under age 50, your lifetime risk increases to 10-20%. Family history is an important indicator not only because of shared genes, but similar lifestyles too.

What type of inheritance is colon cancer?

Hereditary Nonpolyposis Colorectal Cancer (HNPCC) or Lynch Syndrome. HNPCC is an autosomal dominantly inherited condition that arises from mutations of one of four mismatch repair genes, MLH1, MSH2, MSH6 or PMS2 [19, 20]. In 90% or more of cases the mutation is found in one of the first two genes.

What was your first colon cancer symptom?

A persistent change in your bowel habits, including diarrhea or constipation or a change in the consistency of your stool. Rectal bleeding or blood in your stool. Persistent abdominal discomfort, such as cramps, gas or pain. A feeling that your bowel doesn’t empty completely.

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When should you get a colonoscopy if colon cancer runs in your family?

Individuals with a family history of one or more first-degree relatives (sibling, parent or child) with sporadic colorectal cancer, regardless of age, should undergo colonoscopy beginning at age 40 years or ten years younger than the age of the affected relative at time of diagnosis, whichever is earlier.

Who is most likely to get colon cancer?

Age. The disease is most common in people older than 50, and the chance of getting colorectal cancer goes up with each decade past age 40. Cancers are very rare in people younger than 40, except those who have a strong family history of the disease.

How long can colon cancer go undetected?

Colon cancer is typically slow-growing, starting as a benign polyp that eventually becomes malignant. This process may occur over many years without producing any symptoms. Once colon cancer has developed, it may still be years before it is detected.

Is colon cancer hereditary from parents?

One in 18 individuals (5.5 percent) will develop colon cancer in their lifetime. Of all colon cancer cases, only about 5 to 10 percent are hereditary, linked to gene mutations inherited from one’s mother or father.

Does colon cancer develop quickly?

Colon cancer, or cancer that begins in the lower part of the digestive tract, usually forms from a collection of benign (noncancerous) cells called an adenomatous polyp. Most of these polyps will not become malignant (cancerous), but some can slowly turn into cancer over the course of about 10-15 years.

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How often should I have a colonoscopy if my mother had colon cancer?

Those with an average risk of colon cancer, should begin screenings at age 50 and repeat once every 10 years. People with a family member who has had cancer should begin colonoscopies at age 40, or 10 years prior to the youngest diagnosed age (whichever comes first) and should repeat every five years.

How can you prevent hereditary colon cancer?

Six Ways to Lower Your Risk for Colorectal Cancer

  1. Get screened for colorectal cancer. Screenings are tests that look for cancer before signs and symptoms develop. …
  2. Eat lots of vegetables, fruits, and whole grains. …
  3. Get regular exercise. …
  4. Take control of your weight. …
  5. Don’t smoke. …
  6. Avoid alcohol.