Why to get tested?
To diagnose an infection with Helicobacter pylori, bacteria that can cause peptic ulcers
When to get tested?
When you have symptoms of an ulcer, such as gastrointestinal pain that comes and goes, unexplained weight loss, nausea and/or vomiting
What sample needed?
A stool sample, a breath sample, or a tissue biopsy of the stomach lining
What preparation I need before test?
You may need to avoid certain medications; follow any instructions you are given.