Always farting but no flavor may be related to diet diet, mental stress, gastrointestinal diseases and so on. 1. Dietary factors: if you eat a large easy to bloat, high starch food, such as potatoes, sweet potatoes and pumpkin, etc., easy to produce more gas, through the anus out of the body, which occurs always exhaust but no odor of the situation. 2. Mental stress: If you encounter stressful situations, patients with high sensitivity of nerves, intestinal dysfunction can lead to more exhaust, and always farting but odorless. 3. Gastrointestinal diseases: if some patients have colon polyps or colon tumors, they will also have the symptom of farting but tasteless. If the above symptoms persist in addition to dietary factors, it is recommended to consult a doctor in time for a clear diagnosis and early treatment under the guidance of a professional physician.