Colorectal cancer affects the colon or rectum and is one of the most common cancers globally. When detected early, colorectal cancer is highly treatable, underscoring the importance of regular screenings and awareness of symptoms and risk factors.
Colorectal cancer typically begins as small, noncancerous polyps that form on the inner lining of the colon or rectum. Over time, some polyps can become cancerous, highlighting the value of early detection and removal during routine screenings, such as a colonoscopy.
Symptoms may vary based on the size and location of the cancer in the large intestine. Common symptoms include:
Several factors can increase the likelihood of developing colorectal cancer: