Farting a lot in the morning without odor is related to physiological factors such as cold abdomen and intake of gas-producing food, and is also considered to be related to dyspepsia, irritable bowel syndrome, peptic ulcer, and so on. 1. Physiological factors: not paying attention to abdominal warmth, resulting in abdominal cold, intake of gas-producing food, etc., may cause farting in the morning but does not smell. 2. Dyspepsia: dyspepsia is related to gastrointestinal dyskinesia and decreased diastolic function of the stomach to tolerate food. Usually, patients with dyspepsia may suffer from intestinal flora imbalance, which may lead to the phenomenon of farting a lot in the morning without odor, and may be accompanied by abdominal distension, burning sensation in the upper and middle abdomen and other uncomfortable symptoms. 3. Irritable bowel syndrome: the disease is associated with abnormal gastrointestinal dynamics, intestinal infections, intestinal microecological imbalance, etc., which can cause some patients to fart a lot in the morning but do not smell. Typical symptoms include abdominal pain, diarrhea and constipation. 4. Peptic ulcer: some peptic ulcer patients have increased gas in the digestive tract due to intestinal flora imbalance or serious infection, which can cause more farts in the morning but without odor. Peptic ulcer is mainly related to Helicobacter pylori infection and excessive secretion of gastric acid. Common symptoms of peptic ulcer include epigastric pain, anorexia and loss of appetite. It is recommended that people who fart a lot in the morning but don’t smell should investigate the physiological factors, and if they are accompanied by other uncomfortable symptoms, they should consult a doctor in a timely manner.