What causes excessive flatulence every day?

Excessive flatulence usually refers to increased gas passage. In general, passing gas frequently on a daily basis may be caused by dietary habits, swallowing air, lactose intolerance, intestinal dysbiosis, gastroenteritis, and other factors. It is recommended to seek medical advice promptly and receive treatment under the guidance of a physician. Specific causes are analyzed as follows:

1. Dietary Habits

Foods high in fiber, legumes, onions, garlic, and others tend to produce gas. Intestinal bacteria break down food residues that have not been absorbed by the small intestine, generating gases such as hydrogen, carbon dioxide, and methane, which are eventually expelled from the body through flatulence. It is advisable to avoid consuming excessive amounts of high-fiber foods and maintain a balanced diet.

2. Swallowing Air

Eating or drinking too quickly or poor eating habits may lead to swallowing excess air, which can accumulate in the intestines and be expelled as gas. It is recommended to improve eating habits, chew food thoroughly, and avoid talking while eating.

3. Lactose Intolerance

A deficiency of lactase enzyme may result in incomplete digestion of lactose. Undigested lactose entering the large intestine is fermented by bacteria, producing large amounts of gas, leading to increased flatulence, and possibly accompanied by symptoms such as diarrhea and abdominal pain. It is advisable to avoid or limit intake of lactose-containing foods such as milk and cheese.

4. Intestinal Dysbiosis

When intestinal flora is imbalanced—harmful bacteria increase while beneficial bacteria decrease—it can lead to increased gas production in the gut, possibly accompanied by bloating, constipation, and other symptoms. Under medical supervision, medications such as *Bacillus licheniformis* live bacterial capsules, nystatin tablets, or quadruple-strain *Bifidobacterium* live bacterial tablets may be used to restore balance of intestinal flora.

5. Gastroenteritis

Gastroenteritis may be associated with factors such as *Helicobacter pylori* infection or unhygienic diet. During an episode of gastroenteritis, intestinal mucosa may be damaged and infiltrated by inflammatory cells, accelerating intestinal motility and resulting in increased gas passage. It is recommended to follow medical advice and use medications such as ciprofloxacin hydrochloride capsules, bismuth potassium citrate tablets, or enteritis relief granules for treatment.

In daily life, maintaining a light diet and avoiding spicy or irritating foods—such as Sichuan pepper, chili peppers, and onions—can support recovery.