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The signs and symptoms of colorectal cancer depend on the location of the tumor in the bowel, and whether it has spread elsewhere in the body ().The classic warning signs include: worsening constipation, blood in the stool, decrease in stool caliber (thickness), loss of appetite, loss of weight, and nausea or vomiting in someone over 50 years old. [15]
Abdominal pain, unexplained weight loss, and fatigue can also be symptoms of colon cancer. A major warning sign of colon cancer is rectal bleeding or bloody stool.
You may think of colorectal cancer as an older person’s disease, but more adults in their 20s and 30s are being diagnosed, a study published in the Journal of the National Cancer Institute found.
The goal was to find symptoms that might give early signals of colorectal cancer, a disease that has been surging among younger people in recent years, with an troubling number not being diagnosed ...
Some of these cancer therapies may produce treatment-related, or secondary, symptoms, including: Pain Cancer pain may be caused by the tumor itself compressing nearby structures, impinging on nerves, or causing an inflammatory response. It may also be caused by therapies such as radiation or chemotherapy.
Pain in cancer can be produced by mechanical (e.g. pinching) or chemical (e.g. inflammation) stimulation of specialized pain-signalling nerve endings found in most parts of the body (called nociceptive pain), or it may be caused by diseased, damaged or compressed nerves, in which case it is called neuropathic pain.