The most commonly used methods for diagnosing Helicobacter pylori are: 1) Gastroscopy , 2) Urea Breath Test 3) Stool test. Doctors usually adopt the most suitable examination method according to the patient's condition.

After the diagnosis is confirmed, the patient usually receives a course of antibiotics and specific drugs to suppress gastric acid. The course of treatment usually lasts for two weeks, after which the patient needs to undergo another urea breath test to check whether the bacteria are still alive.