During IVF transplantation there may be some inflammatory secretions into the pelvic cavity, and these secretions may have some stimulation to the intestines and some abnormal peristalsis of the intestines, if this abnormal change is shown to be inhibitory, then constipation will occur. However, this state usually does not last for a long time. It is recommended to increase the intake of some fruits and vegetables in the diet and to move around slightly without affecting the fetus, and the symptoms will gradually decrease as the pregnancy week increases.