Stomach cancer is the most common type of digestive cancer in both men and women. The American Cancer Society estimates that about 26,560 men and 11,180 women will be newly diagnosed with stomach cancer in 2021. In Vietnam, in 2018 there were 17,527 new cases of stomach cancer and 15,065 deaths from the disease. this. Stomach cancer patients are often seen after the age of 50, but recently the disease tends to be younger, which makes many people wonder if stomach cancer is hereditary.