After pregnancy, if there is occasional pain in the stomach, in the absence of vaginal bleeding, it is often due to the enlarged uterus pulling on the ligaments next to the uterus, and it is recommended to give timely clinical rest. In case of frequent lower abdominal pain, it may be caused by preterm abortion. Due to lack of progesterone, trauma or sexual intercourse or strain, contraction of the smooth muscle of the uterus may occur, which may lead to pain in the lower abdomen. In clinical practice, it is recommended to give an examination combined with medical history and give the necessary treatment. In addition, women must pay attention after pregnancy, in addition to strengthening nutrition, also need to take proper rest, avoid heavy physical labor, and in the first trimester of pregnancy, do not have sexual intercourse, so as not to cause pre-eclampsia or the possibility of miscarriage in clinical practice.