8 doctors weighed in:
Fiber is supposed to decrease colon cancer risk, but does chronic constipation increase the cancer risk even if a person eats tons of fiber?
8 doctors weighed in

Dr. Colin Kerr
Family Medicine
5 doctors agree
In brief: Colon cancer
The relationship between high fiber intake and colon cancer is still somewhat controversial with studies going both ways.
But a high fiber diet is beneficial in many other ways as well. There are no quality clinical data to suggest constipation is a risk factor for colon cancer.

In brief: Colon cancer
The relationship between high fiber intake and colon cancer is still somewhat controversial with studies going both ways.
But a high fiber diet is beneficial in many other ways as well. There are no quality clinical data to suggest constipation is a risk factor for colon cancer.
Dr. Colin Kerr
Dr. Colin Kerr
Thank
1 comment
Dr. Ralph Morgan Lewis
Some fiber products can work both ways: plenty of fluids+fiber= looser BM's; low fluid intake+fiber=firmer BM
Dr. Ritesh Rathore
Internal Medicine - Hematology & Oncology
1 doctor agrees
In brief: Unlikely
A diet low in fiber is associated with colon cancer risk.
Constipation has not been associated with increased cancer risk in huge population studies in japan and netherlands recently- in fact in the latter study colon cancer risk was less in patients with constipation!

In brief: Unlikely
A diet low in fiber is associated with colon cancer risk.
Constipation has not been associated with increased cancer risk in huge population studies in japan and netherlands recently- in fact in the latter study colon cancer risk was less in patients with constipation!
Dr. Ritesh Rathore
Dr. Ritesh Rathore
Thank
1 comment
Dr. Eric Kaplan
if you are eating a lot of fiber and are still constipated, your problem is most likely inadequate fluids and/otr excessive caffeine and alcohol intake. Since we know environmental factors contribute to colon cancer in 80 % of cases, keeping those agents in your body for extended periods witth constipation should increase your risk. I can not agree with the studies posted above.
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