Colorectal cancer screening typically involves a Faecal Immunochemical Test (FIT) or a colonoscopy. The FIT test checks for hidden blood in the stool, which can be a sign of cancer. If the FIT test is positive, a colonoscopy is usually performed to examine the colon more closely. The NHS recommends that people aged 60 to 74 undergo regular screenings for colorectal cancer. It's essential to participate in these screenings, as early detection can lead to more effective treatments and improved outcomes.