Newsweek Though the recommended age to begin receiving colonoscopies is 45, there has been a noticeable amount of people being diagnosed with colorectal cancer at even younger ages. Wasif Saif, M.D., MBBS , medical oncologist, co-leader of the Gastrointestinal and Neuroendocrine Oncology Multidisciplinary Team (MDT) and leader of the Phase I Clinical Trials MDT , explained the symptoms and risk factors of colorectal cancer that people of average and high-risk need to know, including ho...