In vitro fertilization-embryo transfer stomach bloating may be caused by increased hormone levels in the body after pregnancy, reduced activity and other reasons. 1. Physiological reasons: in vitro fertilization-embryo transfer technology, in vitro fertilization-embryo transfer after the embryo transfer to follow the doctor’s instructions to continue to give luteal support therapy. When the successful implantation of the body’s hormone levels will also rise, will lead to intestinal peristalsis and intestinal tension weakened, thus causing intestinal flatulence, bloating performance, but also prone to constipation, which is a normal physiological phenomenon. 2. Reduced activity: after in vitro fertilization due to reduced activity of pregnant women, in addition, if the intake of more high-calorie, high-protein diet, such as soy products, dairy products, etc., can also cause intestinal flatulence, bloating and other manifestations, can be appropriate activities to alleviate the symptoms. When the test tube transplant stomach bloating can go to the hospital to identify the cause and timely treatment.