The symptoms of stomach pain in late pregnancy, the nature and location of the pain are different, and the possible causes are not entirely consistent: 1, physiological abdominal pain, the most typical symptom is the emergence of regular abdominal pain after full-term pregnancy and labor, the pain is paroxysmal, intermittent pain symptoms completely disappeared, the degree of pain gradually increased, is a normal performance of late pregnancy. 2, pre-eclampsia uterus Rupture, some pregnant women in labor, due to fetal malposition, cephalopelvic disproportion, or other reasons leading to the progress of labor, compulsory uterine contractions, especially the history of previous cesarean section, the lower part of the uterus with incision scar pregnant women, prone to uterine rupture, before the rupture, the lower abdomen will have severe, persistent pain symptoms, and has obvious pressure pain.