How does my dr know for sure I don't have colon cancer?

Has he/she looked? While the great majority of colorectal cancers take years to arise from polyps, there are a few situations in which cancers develop faster, and may not go the polyp route. These include inflammatory bowel disease and some family genetic dosorders, like lynch syndrome. Talking with your doctor will help determine your risk level for colorectal cancer.
Colonoscopy. In experienced hands, a normal colonoscopy rules out colon cancer in almost all patients.
Can't for certain. All diagnostic tests have what is called a false negative rate, meaning that a test designed to look for something didn't find the something even though it is there. If you have had colonoscopy or a barium enema that showed nothing, that is the best you can do for now.

Related Questions

How can a doctor know for sure I don't have colon cancer?

Colonoscopy. While no test is 100% sure, colonoscopy is the most sensitive and specific, and it allows for biopsy and removal of polyps. But it is also expensive. Other tests include fecal occult blood tests for screening in patients with no symptoms, flexible sigmoidoscopy, and air-contrast barium enema. These tests are not as complete. Read more...
By doing a scope. Colonoscopy is the only sure way to know. But unless you have symptoms like bleeding or pain, are over 50, or have a family history, there's probably no need to check. Ask your doctor if you should be checked. Read more...
Colonoscopy. If reason to suspect colon cancer colonoscopy is considered best. Routine colonoscopy advocated by many M.D. Based upon age. Read more...

I occasionally get thin stools that stay for a month or so. Idon't have colon cancer. Are there any natural ways to relieve thin stools and constipation?

Diet changes. I assume that when you say "no colon cancer", that you have been checked out by a physician. If so, you just need to eat more fiber (either from fruit and vegetables, or from powdered fiber like metamucil), drink more water and walk more. You need to regulate your bowel movements. Read more...
High fiber diet. Eat better, avoid junk food (burgers, pizza, hot dogs, french fries, etc). Eat less white bread, white rice & pasta. Drink more water. Eat more fruits & vegetables. Add metamucil twice a day. Be active & exercise. Read more...
More fiber in diet. If you suffer from constipation, a great natural way to have regular and normal bms is to increase the fiber in your diet and to drink lots water. You can do it by eating foods high in fiber or taking in daily fiber in preparations such as metamucil. Read more...

Why don't women get colonoscopies considering they can get colon cancer too?

They should . It is recommended that both men and women undergo screening colonoscopy at age 50.Women get colon cancer also. Read more...
They do! Colon cancer doesn't differentiate between sexes and the male: female ratio is 50:50. That's why every one age 50 should get a colonoscopy or other screening test for colon cancer, and even younger if there is a family history. Interestingly, women get more right side colon cancers, and men more left, and we don't really know why! Read more...

Any signs or symptoms to watch for with diagnosed colon cancer in paraplegic that can't feel pain like others?

Depends. If you're if you're wondering what symptoms to watch out for until the operation, about obstruction is a possibility. In this case, nausea, vomiting, and abdominal distention are common. Hope this helps! Read more...

When they say colon cancer bleeds intermittently, do they mean every few days? Week?, months? Years? My dr said most colon cancers bleed continuously.

Unpredictably irregu. Most colon cancers bleed irregularly and would cause serious other complications within 6-12 months, if left untreated. They increase in size and can obstruct the lumen of the colon and also tend tio spread often to the liver..All within a period of 1-2 years. Read more...
Colon Cancer Bleed. The colon cancers that bleed are usually located on the right side of the colon. The bleeding from these cancers is usually very slow and are not often detected by the naked eye. You may notice that your bowel movements appear darker in color. More significant bleeding would appear bright red. Read more...

If I don't have a family history of colon cancer and I have bright red blood on bm, should I worry?

YES. Any change should be addressed by your doctor. Rectal bleeding can be many things ei: hemorrhoids or colitis. Of course rectal bleeding can also be a sign of cancer. The most important thing to know is that we are all at risk for colon cancer, that is why we do screening colonoscopies at age 50 in both men/women. Colon cancer is the 3rd most common cancer in the us. Read more...
Yes. It is not likely to be cancer, but even a benign sounding disease like hemorrhoids, that can cause bright red blood in stool, could lead to iron deficiency anemia. See your doctor to determine the cause and get treatment. Read more...

Testing for colon cancer? Are there any tests besides the colonoscopy? I really don’t want to have to use those colon cleaning laxatives. I had to once before and felt really sick from them. Isn’t there another test?

There . There are actually two separate questions here. The first is whether there area alternative tests besides colonoscopy. There are other tests; but each one has limits. Testing stool for blood can identify cancers; but is not a good preventative test. The real goal is to find polyps before they become malignant. Work is underway on tests that try to analyze dna found in stool to look for markers of abnormal growths. It is an exciting area; but the current tests are not accurate enough and far too expensive. The alternative to colonoscopy that is designed to find polyps without insertion of a colonoscope is ct colography or "virtual colonoscopy". However, it also requires a preparation; and is both more uncomfortable and less accurate than the colonoscopy. The second question you asked deals with the preparation itself. Talk to your physician. There are several newer preparations that entail much smaller volumes of preparation liquid over longer times than we used to use in the past. Most people find it easy and very tolerable. I know i did for my exams. Read more...
Still need cleanse. Even if you have a virtual colonoscopy with a ct scanner, a bowel cleanse is needed. Fecal occult blood cards is a less specific screening method but doesn't require a bowel cleanse. Read more...