Colorectal cancer and smoking: Surgeon explains link, prevention tips

The colon or rectum is where colorectal cancer first appears. Polyps, or abnormal growths, are the precursors of this malignancy and, if left untreated, can develop into cancer. However, it has been noted that one of the causes of colorectal cancer is tobacco use.

Tobacco use has been identified as one of the major risk factors for colorectal cancer. It has been linked to the development of carcinogens from tobacco smoke, oxidative stress and chronic inflammation, cellular dysfunction, and epigenetic alterations. According to Dr. Neeraj Goel, "all of these mechanisms are ultimately responsible for the development and progression of colorectal cancer."

Quitting smoking can improve general health and drastically lower the risk of colorectal cancer. Colonoscopies and other colorectal cancer tests can assist in identifying the disease early on, when therapy is most successful. Maintaining a healthy weight, eating a balanced diet, and getting regular exercise can all help lower the risk of colorectal cancer.