The common reasons for farting a lot in a day are food factors, intestinal flora disorders, constipation, hyperthyroidism and so on. 1. Food factor: If you eat a lot of gas-producing food, such as radish, sweet potato, fava bean, etc., after digestion and decomposition by intestinal bacteria, it will produce a lot of gas to increase the gas in the intestinal tract, which will lead to a lot of farts in a day. 2. Intestinal flora disorders: for example, when eating spoiled food or high mental stress, it is easy to cause intestinal flora disorders, resulting in eating food can not be fully digested and decomposed, and food corruption will produce a lot of gas, which leads to a lot of farts a day. 3. Constipation: Patients often have irregular eating and poor defecation habits, which leads to prolonged retention of stool in the intestinal tract, resulting in the reaction of gas production and excessive farting. You can actively exercise such as running, swimming, etc. Exercise can accelerate blood circulation and enhance the body’s metabolic function. 4. Hyperthyroidism: Hyperthyroidism patients due to increased secretion of thyroid hormones, which leads to the body’s metabolic function, there may be an increase in gastrointestinal peristalsis, farting increased, and if you eat too much at night, farting symptoms will be more obvious. Farting a lot a day can be due to physiological reasons or pathological reasons, if you have uncomfortable symptoms, you need to consult a doctor in time.