Doctors identify the blood type most at risk for developing stomach cancer

Stomach cancer may not cause symptoms early on, but warning signs can include:

• persistent indigestion
• stomach pain or discomfort
• feeling full quickly
• nausea
• unexplained weight loss
• vomiting blood
• black stools

These symptoms do not always mean cancer, but they should be checked if they persist.

Bottom line

If you want the direct answer, blood type A is the blood group most often linked to a higher risk of stomach cancer in research. But blood type is not destiny. The most useful steps are paying attention to symptoms, treating H. pylori when present, avoiding smoking, and getting medical advice if symptoms keep coming back.