Farting at night may be caused by dietary factors, indigestion or abnormal liver and gallbladder function. 1. Dietary factors: some people eat more sweet potatoes, radish and other easy to produce gas during the day, so the phenomenon of farting at night, this situation usually does not need special treatment, usually will recover on their own. 2. Indigestion: If you overeat during the day, which leads to increased burden on the gastrointestinal tract and indigestion, it is easy to increase farting at night, and usually there are also symptoms of flatulence. 3. Abnormal liver and gallbladder function: some people have abnormal liver function and gallbladder function, which reduces bile secretion, thus affecting the digestion of food, which is prone to corruption and excessive gas, thus resulting in more farts at night. If the farting at night is accompanied by other uncomfortable symptoms, you must actively go to the regular hospital to do the relevant examination, to clarify the specific causes, and follow the doctor’s instructions to deal with, so as to avoid delaying the condition.