Could Your Blood Type Affect Your Cancer Risk? Science Answers

Are you really aware of your blood type?

Contrary to popular belief, many people are unaware of this vital information until a significant event occurs: a hospital exam, a pregnancy, or a blood donation session. Routine blood tests do not automatically include this information.

Although it is possible to make an assumption based on the parental blood type, this method lacks precision. To obtain a reliable answer, a specific test is necessary – often offered free of charge during donation campaigns organized by the French Blood Establishment.

Type O: a natural shield against certain cancers?

The scientific community has been examining the potential relationship between blood types and disease risks. The findings are particularly illuminating.

A landmark 2015 study revealed a link between blood type and the likelihood of developing certain cancers, particularly gastric cancers. Individuals with blood type O were found to have a slight reduced risk.

Even more surprisingly, this blood type also appears to confer a certain resistance to pancreatic cancers and certain forms of colorectal cancers. Experts suggest a more effective immune response, as if this blood profile creates a barrier against certain bacterial infections that promote the development of cancer cells.