The 23rd week of pregnancy is the middle and late stages of pregnancy. At this time, the fetus is growing very fast and the uterus is enlarging faster, so the uterine wall can be stretched and tensed, causing abdominal pain. In addition, the enlargement of the whole abdomen can cause slight pain in the abdomen due to the compression of the abdominal organs and the pulling of the ligaments around the uterus. Especially when the enlarged uterus touches the lower edge of the rib cage, the abdominal pain can be aggravated, which is a normal physiological phenomenon. However, if the abdominal pain is severe and cannot be relieved significantly after resting and adjusting the posture, it is necessary to consider the presence of gynecological diseases, such as pre-eclampsia, placenta abruptio, ovarian cysts or other diseases. It is important to go to the hospital for relevant diagnosis and treatment in a timely manner. In addition, pregnant women may also have abdominal pain caused by digestive and gastrointestinal disorders, which should also be diagnosed and treated at a hospital.