What is biopsy for clo test?

A biopsy for clo test involves obtaining a small tissue sample from the inside lining of the stomach or small intestine. The tissue is then analyzed for the presence of the bacteria Helicobacter pylori, which can cause ulcers and other gastrointestinal problems. The biopsy can be performed during an upper endoscopy, in which a long, thin tube with a camera is inserted through the mouth and into the digestive system. The procedure is generally safe and minimally invasive, but there is a small risk of bleeding or infection. The results of the biopsy can help determine the appropriate treatment for H. pylori.