Three pluses for Helicobacter pylori indicate that there is an infection with Helicobacter pylori, and the level of infection is not low.

Helicobacter pylori is the main cause of chronic gastritis, peptic ulcers, and even stomach cancer. If a person tests positive for Helicobacter pylori infection, and has symptoms or diseases related to the digestive system, or has a family history of stomach cancer, eradication treatment for Helicobacter pylori is necessary. The treatment involves a proton pump inhibitor plus two types of antibiotics, along with a bismuth agent, for a total of 14 days. After stopping the medication for one month, a carbon-14 breath test should be re-conducted. If the result turns negative, it means that the eradication treatment for Helicobacter pylori was successful. If it does not turn negative, remedial treatment is required.