Colorectal cancer causes?

Heredity & diet. The cause is not known in most cases. In a small number the cause is clearly heredity, e.g., apc and hnpcc. In the garden variety colon cancer, a diet low in fiber and rich in fats may increase the risk of cancer.

Related Questions

Can colorectal cancer cause bladder pressure?

Yes . If the mass remains there and if it is located close to the bladder and pressing the bladder-yes- you can have bladder pressure. Read more...

Is colorectal cancer caused by a genetic defect leading to polyps?

Yes and no. All benign and malignant tumors result from accumulated genetic mutations. There are a few hereditary illnesses in which a child inherits a first mutation in the series that leads to colon cancer. However, most people with colon cancer began life with a genome free of cancer-causing mutations. Benign polyps may or may not acquire additional mutations and turn cancerous. Read more...

What causes colorectal cancer, and who is more likely at risk of developing it?

Multiple causes. There are multiple causes to colorectal cancer. It is a combination between genetics, and what your colon & rectum are exposed to over the course of many decades. Clearly the most at-risk patients are those with a strong family history and a documented history of gene mutations, namely something called fap and hnpcc. Take a look at some of my other posts on reducing your risk. Read more...
Can be genetiic. Can run in the family but there is an increased incidence with age. That is why a colonoscopy is advocated over the age of 50. Read more...

I think I have colorectal cancer?

Reason? Unless you have a family history or other predisposing factor you are probably too young for colorectal cancer. If you recently noticed a change in bowel habits or blood in stool get a GI checkup. Read more...

What ages does colorectal cancer affect?

It varies. Colon cancer can strike from the 20s and beyond, but is much more common in people in their 50s to 70s hence the recommendations to not routinely do colonoscopies in people before the age of 50. Colon cancer that presents before 60 is often genetic whereas after 60 is more likely due to environmental factors like smoking and red meat. Read more...
Colorectal Cancer. 90% of colorectal cancers strike after age 50, unless the person has a hereditary form such as familial adenomatous polyposis, or certain chronic diseases such as ulcerative colitis. There has been an uptick in recent years in cases in young people, and screening is recommended in those with a positive family history beginning at age 45. A colon cancer screening test is easy to obtain at any time. Read more...