Mayo Clinic suggests that contact with human saliva and waste, as well as contaminated water or food, are possible causes of a pylori bacteria infection. The exact cause is unknown, as of 2015. Healthline cites overcrowded living situations and living in developing countries as risk factors for pylori bacteria.
WebMD defines pylori bacteria, or Helicobacter pylori, as a bacteria capable of surviving and thriving in the human digestive tract. Over half of the world population likely harbors pylori bacteria. The bacteria survive in the digestive tract for years, most often with no harmful effect to the host. However, some people experience ulcers of the stomach and upper intestines due to a pylori bacteria infection. In some patients, this even leads to stomach cancer.
WebMD explains that Helicobacter pylori attack the walls of the stomach. Stomach walls have a lining that protects the stomach and digestive tract from stomach acids. When this barrier breaks down, stomach acid escapes and causes ulcers that are discernible as a burning pain in the gut. There is no clear reason why some people get ulcers from pylori bacteria while many others do not.
Treatment for pyloric ulcers involves three medications, states Healthline. Two of these are antibiotics to combat the bacteria themselves, while the third is an antacid. The antacid provides relief from the pain of ulcers while creating a more suitable environment for antibiotic treatment.