After eating probiotics fart super smelly may be physiological factors, may also be chronic gastroenteritis, Helicobacter pylori infection, rectal mucosa neurofibroma and so on. Probiotics into the intestinal tract, not only with the intestinal mucosa, forming a protective film, but also in the intestinal tract into a large number of short-chain fatty acids and other acidic substances, stimulate intestinal peristalsis to accelerate the release of a large number of odorous gases, these gases are the contents of the intestinal tract because of functional indigestion or constipation and other causes of the retention of the contents of the fermentation and the production of the gas. Therefore, the phenomenon of farting with foul odor after taking probiotics will occur. If there are chronic gastroenteritis, Helicobacter pylori infection, rectal mucosal neurofibroma and other diseases, the phenomenon of smelly farts can also occur. Probiotics are active flora with multiple benefits to the human body, which not only protect the intestinal tract and promote intestinal peristalsis, but also have the functions of improving human immunity, promoting digestion and absorption of various nutrients, inhibiting endotoxin generation and resisting radiation. After eating probiotics fart super smelly, there may be other reasons, it is recommended to consult the doctor as soon as possible, improve the examination, clarify the cause of the disease, symptomatic treatment.