Pre-eclampsia abdominal pain is generally referred to as small abdominal pain, roughly below the navel and above the pubic symphysis, in a more restricted location. The uterine wall and uterine blood vessels of pregnant women in pre-eclampsia miscarriage will produce spasmodic contraction under strong stimulation, resulting in insufficient blood in the uterus, and the uterus is in ischemic condition, when the sacral nerve will transmit the information to the cerebral cortex, causing pain response, and the uterus is located in the pelvis, and the pain will be manifested in the small abdomen. The abdominal pain caused by pre-eclampsia is usually paroxysmal abdominal pain, mostly accompanied by vaginal bleeding and low back pain. If there is a gradual increase in abdominal pain, continuous vaginal bleeding and discharge of tissue, it may be due to the aggravation of the condition and it is considered that inevitable miscarriage has occurred, so it is recommended to seek medical attention promptly. For mild abdominal pain, pregnant women can use warm towels or warm water bags to warm their abdomen and pay attention to bed rest while undergoing birth control treatment, which may play a role in relieving symptoms. Generally, as the effect of treatment becomes apparent, the symptoms of miscarriage will gradually disappear and the abdominal pain will be relieved. When the pre-eclampsia miscarriage develops into inevitable miscarriage, the pregnant woman needs to have an abortion or induction of labor in time to remove the uterine cavity residue and relieve the stimulation to the uterus in order to eliminate the abdominal pain.