10 Rectal Cancer Symptoms
Reviewed: Dr. Mera
Symptom #6: Thinner Stools
When not in use, our anus is closed by a type of muscle known as a sphincter. This closes tight to prevent anything from falling out, but it will relax somewhat when it comes time to allow feces to pass out. The stool is then passed through this passage and the shape of the sphincter will help shape the feces.
When there is a rectal cancer present, however, the passage behind the sphincter will be narrower than usual. The feces will be forced through this narrower than usual passage, and this will cause the feces themselves to be thinner than usual.
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