Colon cancer , also known as colorectal cancer , is one of the most common types of cancer in adults. Understanding where and how it originates is key to early detection and increasing the chances of successful treatment.
What is the colon?
The colon is part of the large intestine , whose main function is to absorb water and form feces.
Parts of the colon:
- Ascending colon
- Transverse colon
- Descending colon
- Sigmoid colon
- Straight
Cancer can develop in any of these areas , although it is most common in the sigmoid colon and rectum .
Where does colon cancer begin?
In most cases, colon cancer begins as a polyp , a small benign lesion that grows on the inner wall of the colon.
Common process:
- A benign polyp appears
- Over time, some polyps become precancerous.
- If they are not detected, they can turn into cancer.
This process can take 10 to 15 years , which allows for a great opportunity for prevention.
- Age over 45 years
- Family history
- Diet high in processed meats
- Low fiber consumption
- Sedentary lifestyle
- Obesity
- Smoking and alcohol
