Helicobacter pylori (H. pylori) is a type of bacteria which can enter your body and live in your digestive
tract. After many years, they can cause ulcers in the lining of your stomach
or the upper part of your small intestine.
H. pylori is common. About two-thirds of the world's population has H. pylori
in their bodies. For most people, it doesn't cause ulcers or any other
symptoms. If you do have problems, there are medicines that can kill the
bacteria and help sores heal. With good health habits, you can protect
yourself and your children from H. pylori. You can get
H. pylori from food, water, or utensils and infection with H. pylori is more common
in countries or communities that lack clean water or good sewage systems.