Recent research found that screening for patients diagnosed with colorectal cancer can be more harmful than beneficial. Researchers tried to detect which patients could have benefit from screening and which not , so the screening would be recommended to an individual instead to all of patients.

Study found a method of evaluating medical screening tests which was based on minimum of time that it takes that tests like colonoscopy could be beneficial instead of harmful so side effects could be avoided. During the research screening was performed on two groups. One included man diagnosed with HIV, age around 50 and the other group were woman in their sixties diagnosed with congestive heart failure. Results were that patients diagnosed with heart congestive failure had more harm from screening than the ones with HIV because life expectancy was shorter for patients with heart congestive failure than for the patients who suffer from HIV and who are likely to benefit from colorectal screening.

This study is important because physicians will now not offer screening to everyone, no matter to illness from which are patients suffering because not all of them could benefit from it