Colon cancer is a type of cancer that begins in the large intestine (colon). Colon cancer typically affects older adults, though it can happen at any age. It usually begins as small, noncancerous (benign) clumps of cells called polyps that form on the inside of the colon. Over time some of these polyps can become colon cancers.
Polyps may be small and produce few if any, symptoms. For this reason, doctors recommend regular screening tests to help prevent colon cancer by identifying and removing polyps before they turn into cancer.
If colon cancer develops, many treatments are available to help control it, including surgery, radiation therapy, and drug treatments, such as chemotherapy, targeted therapy, and immunotherapy.
When to see doctor?
Signs and symptoms of colon cancer include:
● A persistent change in your bowel habits, including diarrhea or constipation or a change in the consistency of your stool
● Rectal bleeding or blood in your stool
● Persistent abdominal discomforts, such as cramps, gas or pain
● A feeling that your bowel doesn't empty completely
● Weakness or fatigue
● Unexplained weight loss
Many people with colon cancer experience no symptoms in the early stages of the disease. When symptoms appear, they'll likely vary, depending on cancer's size and location in your large intestine.