A bout of stomach pain in late pregnancy may be caused by preterm labor, preterm labor, or acute gastroenteritis, and requires treatment such as suppressing contractions and combating infections according to the situation. 1. Preterm labor: pregnant women in the late stages of pregnancy, but still not full-term when a burst of pain in the stomach, considering the possibility of preterm labor. In this case, you must go to the hospital as soon as possible, under the guidance of the doctor to do to suppress contractions treatment. 2. Prolonged labor: when pregnant women experience a bout of pain in their stomachs in the late stages of pregnancy, it may be a precursor to labor, in which case they should go to the hospital as soon as possible, observe the progress of labor under the guidance of the doctor, closely monitor the fetal heartbeat and wait for the delivery of the fetus. 3. Acute gastroenteritis: pregnant women to late pregnancy stomach pain, may also be due to various causes of acute gastroenteritis, intestinal activity will cause contractions, this time need to be under the guidance of the doctor to treat acute gastroenteritis, and inhibit the contraction treatment. It is recommended that pregnant women who have abdominal pain in late pregnancy should seek medical attention as soon as possible.