It is due to the elevated estrogen level in early pregnancy and the ovaries’ poor ability to induce gastrointestinal peristalsis from ovulation, which affects the excretory function and causes symptoms of flatulence or constipation. Gastrointestinal peristalsis is slow and bloating occurs. Usually it will be relieved after 3 months. It is recommended to eat more foods containing fiber, protein and starch, such as fruits and vegetables, fish and meat foods. In the early stages of fetal formation, a large amount of protein is needed, so it is recommended to eat smaller and more frequent meals. Walking more after meals can promote blood circulation to reduce gastrointestinal motility and can improve muscle tone. It is advisable to exercise within 30 minutes, pay attention to more rest during pregnancy, reasonable with diet. Do not take drugs casually to avoid causing adverse reactions, should be based on more rest. Pay special attention to early pregnancy and seek medical attention if there is a feeling of falling in the abdomen or vaginal bleeding.