Blood Group and Cancer Link: Is ‘O’ Group Really Safer? Know the Scientific Facts
New Delhi: February 14, 2026
Cancer causes often spotlight lifestyle and genetics, but recent medical research uncovers another intriguing factor: blood group. International studies show certain blood types face higher cancer risks.
Research indicates ‘A’ and ‘AB’ groups have elevated cancer odds:
Gastric Cancer: ‘A’ group risk 13-19% higher than ‘O’; ‘AB’ up to 18%.
Pancreatic Cancer: ‘A’ 32% higher, ‘AB’ 51% vs. ‘O’.
Yes, ‘O’ blood shows ~16% lower overall cancer risk, lacking antigens aiding tumor growth.
Experts link ‘A’ group’s greater H. pylori sensitivity—causing stomach infections leading to cancer. Immune responses and cell interactions also vary by blood type.
Blood group is unchangeable, but not sole cancer cause. Key defenses:
Quit smoking and alcohol.
Eat fresh fruits, veggies, balanced diet.
Exercise regularly; control obesity.
Regular health checkups.
Note: For health concerns, consult specialist immediately.