Farting at night and very loud is often caused by improper diet, intestinal flora imbalance or infection, or indigestion. Patients need to clarify the cause and carry out cause-specific treatment. I. Improper diet: 1. Too much air intake: eating fast, swallowing more air with food, eating into the wind, or laughing and joking while eating, resulting in too much air entering the gastrointestinal tract, exceeding the amount absorbed by the gastrointestinal tract, which leads to farts at night; 2. Too much gas-producing food intake: too much gas-prone food is consumed at dinner, such as beans, sweet potatoes, potatoes and so on. Such food is mainly protein and starch, which causes the surimi to stay in the digestive tract for too long and the bacteria to ferment and produce too much gas, which in turn leads to loud farts at night. Second, intestinal infection, dysbiosis: When there is bacterial infection or dysbiosis in the intestinal tract, the number of gas-producing bacteria increases, resulting in excessive gas production, which leads to increased and loud farts. Indigestion: In patients with indigestion, gastrointestinal peristalsis slows down at night, resulting in prolonged stay of food in the digestive tract and the fermentation of bacteria in the digestive tract, which may lead to loud farts at night. If there are farts still loud at night, patients should pay attention to adjust their diet, avoid eating too much gas-producing and cold food, and avoid taking in too much gas during meals to avoid abdominal distension. Probiotics can be taken orally as appropriate to regulate intestinal flora, such as oral yogurt, probiotic tablets, etc. If the symptoms continue to worsen without relief, attention should be paid to promptly visit the hospital to rule out any other organic diseases.