Generally eating lamb’s stomach for H. pylori testing is accurate. However, if the lamb’s stomach has been infected with H. pylori, testing for H. pylori after eating is inaccurate. Helicobacter pylori is a kind of unipolar, multi-flagellated, bluntly rounded end, spiral curved bacillus, anaerobic, very demanding on the growth conditions, is the only microbial species known to be able to survive in the human stomach, but Helicobacter pylori is generally parasitized in the human stomach, and most will not be parasitized in animal stomachs, so the lamb’s stomach does not generally contain Helicobacter pylori. H. pylori is highly contagious and can be transmitted by mouth to mouth, such as contamination of diet and tableware by bacterial saliva of an infected person, leading to infection of the person who eats them; by fecal-oral transmission, meaning that the person who eats them consumes food directly contaminated by bacterial-containing feces, etc.; and by medical infections, such as failure to completely disinfect the gastroscope after gastroscopic examination of an infected person, leading to infection of the person who receives the examination. Paying attention to dietary hygiene is one of the most important ways to prevent H. pylori infection. Once infected with H. pylori, it is recommended to seek timely medical treatment.