The common causes of flatulence and nausea after pregnancy include pregnancy reaction, dietary stimulation and digestive diseases, etc. Commonly used countermeasures include not doing special treatment, paying attention to diet and actively treating the original disease. 1. Pregnancy reaction: pregnant women after pregnancy, the body of estrogen and progesterone levels rise, will not only inhibit the secretion of gastric acid will also inhibit the gastrointestinal tract peristalsis, resulting in pregnant women with flatulence, nausea, loss of appetite and other symptoms. When the symptoms are mild, there is no need to be overly nervous, generally do not do special treatment. 2. Dietary stimulation: because pregnant women’s gastric acid secretion and gastrointestinal peristalsis are inhibited, so their digestive ability is reduced. If a pregnant woman eats too much, too greasy or cold food, can not be digested for a time, it will produce flatulence, nausea and other discomforts. At this time, you need to pay extra attention to the pregnant woman’s diet, do not eat spicy, greasy food, and eat on time, avoid overeating. 3. Digestive diseases: If pregnant women suffer from peptic ulcer, chronic gastritis and enteritis and other digestive diseases, because of the decline in digestive function, the food can not be completely digested, will also lead to pregnant women have flatulence, nausea and other conditions. At this time, you need to take aluminum hydroxide gel, an antacid bismuth magnesium sodium bicarbonate tablets and amoxicillin capsules, which are less damaging to the fetus, to protect the gastric mucosa. Pregnant women who always have flatulence and nausea after pregnancy should also pay attention to the warmth of the stomach, and be careful to prevent the gastrointestinal tract from being irritated by cold air, which may cause a decrease in digestion. If the symptoms of flatulence and nausea are not relieved and get worse, you need to consult a medical professional, and medications should be used under medical supervision.