Researchers show which blood group has the lowest cancer risk

What Researchers Want People to Understand

Scientists caution against overinterpreting these findings. Blood type is just one small piece of a much larger puzzle. The real value of this research lies in helping doctors better understand cancer biology — not in labeling people as “low-risk” or “high-risk” based on blood group alone.

Future research may use these insights to improve early detection strategies or develop more personalized prevention approaches.

The Bottom Line

Current research suggests that blood type O may be associated with the lowest overall cancer risk, but the difference is modest and should not replace proven prevention strategies.

Healthy habits, regular medical checkups, and awareness of family history remain the most effective tools for reducing cancer risk — regardless of blood type.

As science continues to evolve, discoveries like these help deepen our understanding of the human body and bring us closer to more personalized healthcare in the future.