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Diseases by blood group: what ailments threaten each "type"
Diseases by blood group: what ailments threaten each "type"

Diseases by blood type - is it true or fiction? Depending on the characteristics of the composition in the AB0 system, 4 blood groups are distinguished. And it has long been possible to find out that it is these differences that can affect the predisposition to certain diseases.

Diseases by blood group: what ailments threaten each "type"
Diseases by blood group: what ailments threaten each "type"

Blood clots

Researchers from Denmark studied how a blood group interacts with a genetic predisposition to deep vein thrombosis (DVT) or blood clots in the lower extremities. The study analyzed the results of more than 30 years of observation of the health of 66 thousand people. As a result, it was found that people with blood groups II, III and IV have a 40% higher risk of developing DVT than with the most common I. Moreover, an additional study, which examined the influence of various factors on the risk of developing the disease, demonstrated: IV blood group increases the risk by 20%, and being overweight and smoking - by 16% and 6%, respectively.

Heart diseases

Scientists from Harvard studied the effect of blood type on the risk of developing heart disease. As part of the study, they analyzed data on the health of 77 thousand patients and found that those with the IV blood group have the highest risk of developing heart disease - 23%. However, the researchers remind that factors such as weight, smoking and type of diet have a much greater influence.


Stomach cancer

Researchers from the Karolinska Institute (Sweden) have found that blood group II increases the risk of developing stomach cancer by 20%. At the same time, patients with blood group I showed lower resistance to Helicobacter pylori bacteria, which cause gastritis and stomach ulcers.

Dementia and memory loss

People with blood group IV have the highest risk of developing age-related cognitive impairment: as shown by the results of one study, the presence of blood of this group increases the risk by 82%. Scientists attribute this to the fact that people with the fourth blood group, as a rule, have a higher content of a special type of protein that affects clotting - and plays an important role in the development of age-related dementia. But it is important to remember that factors such as high blood pressure, diabetes, and smoking are much more influential in the risk of developing the disease.


The researchers call the owners of the I blood group the most protected from the development of a stroke: their risk is only 9%. Experts are not yet ready to answer what exactly is responsible for this pattern, but remind that after 40 years it is important to control your blood pressure and, if possible, quit smoking and excessive alcohol consumption.

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