Delaying cancer screening can increase the risk of missing early detection, which is crucial for successful treatment. Many cancers, when caught early, have higher survival rates and more treatment options. For instance, delaying a mammogram or colonoscopy can allow cancer to progress to a more advanced stage, making it harder to treat. It's understandable to have concerns about screening, but discussing these with your GP can provide reassurance. The NHS has measures in place to ensure screenings are conducted safely. Timely screening can save lives, so it's important to stay on schedule.