# Aspirin Doesn't Prevent Colorectal Cancer, Review Says
A comprehensive review of research has debunked the idea that aspirin reduces colorectal cancer risk. Scientists examined existing studies and found no solid evidence supporting aspirin as a prevention tool for this disease.
The findings overturn earlier assumptions that aspirin's anti-inflammatory properties might protect against colorectal cancer. Researchers looked at multiple clinical trials and observational studies, finding that aspirin use did not meaningfully lower cancer rates in study participants.
This matters because many people, particularly older adults, have taken aspirin based on recommendations for heart health. Some may have believed they were also protecting themselves from colorectal cancer. The new review clarifies that this secondary benefit does not exist.
What does work for colorectal cancer prevention? Screening remains the most effective tool. Regular colonoscopies and other screening tests catch precancerous polyps before they become tumors. The U.S. Preventive Services Task Force recommends screening starting at age 45 for average-risk adults.
Lifestyle changes also play a central role. Eating more fiber, limiting processed meat, maintaining a healthy weight, exercising regularly, and limiting alcohol reduce colorectal cancer risk. These habits address the underlying inflammation and cellular damage that leads to cancer development.
For heart health specifically, aspirin still has a role under certain conditions. Adults with a history of heart attack or stroke may still benefit from aspirin therapy on their doctor's recommendation. But parents and older adults should not take aspirin solely for cancer prevention.
Anyone concerned about colorectal cancer risk should talk with their doctor about screening schedules and lifestyle modifications tailored to their personal risk factors. Family history, age, and existing health conditions all influence screening recommendations and prevention strategies.