What to know about Colorectal cancer

Colorectal cancer is a type of cancer that starts in the colon or rectum, parts of the large intestine.

According to the World Health Organization, it is one of the most common cancers worldwide and a major cause of cancer-related deaths.

The disease usually begins as small growths called polyps that develop on the inner lining of the colon or rectum.

Over time, some of these polyps can become cancerous.

Early stages may not cause noticeable symptoms, which is why screening is important.

Common signs include changes in bowel habits, blood in stool, abdominal pain, unexplained weight loss and persistent fatigue.

Risk factors include older age, unhealthy diet, physical inactivity, obesity, smoking and high alcohol consumption.

The WHO notes that many cases can be prevented through healthy lifestyles, including eating a balanced diet rich in fruits and vegetables, staying physically active and avoiding tobacco.

Early detection through screening greatly improves treatment outcomes and survival rates.