There is no direct correlation between fetal baby hiccups and hypoxia, and hiccups do not indicate the absence of hypoxia. Fetal hiccups are a normal physiological phenomenon, but they do not indicate whether the fetus is suffering from hypoxia in the uterus. Generally the fetus in the uterus lack of oxygen will be manifested as frequent fetal movement or fetal movement decreased. Hiccups may be caused by abdominal wall muscle twitching, especially when the fetus gulps amniotic fluid, hiccups may occur, for the promotion of fetal lung development has certain benefits. Therefore, during pregnancy can not be based on fetal hiccups to determine whether there are abnormal phenomena, but if the fetal movement is too frequent or the phenomenon of sudden decrease in fetal movement, it is recommended to consult a doctor in time to determine whether the fetus has a lack of oxygen phenomenon, and carry out targeted treatment.