Over one million cases of gastric cancer are diagnosed each year around the world. Stomach cancer is the 5th most commonly diagnosed cancer in the world, and the 7th most prevalent. The cumulative risk of developing gastric cancer from birth to age 74 is 1.87% in males and 0.79% in females worldwide.Gastric cancer is more prevalent in males. In developed countries, gastric cancer is 2.2 times more likely to be diagnosed in males than females. In developing countries, this ratio is 1.83.