The four-month pregnant stomach hard and taut considerations may be caused by uterine contractions, uterine contractions have true contractions and false contractions, if the stomach hard and taut continue to do not relieve, consider the true contractions, you need to carry out birth control treatment, if the stomach hard and taut for a while on the ease of the consideration of false contractions, which is a normal physiological phenomenon, the pregnant woman do not have to worry about it too much. 1. True contractions: if the pregnant woman’s stomach is hard and taut and continues to be unrelieved, slowly aggravated and accompanied by a small amount of blood from the vagina, considered to be caused by true contractions, then you need to go to the hospital in a timely manner to give magnesium sulfate and other fertility preservation treatments, and at the same time, pay attention to bed rest, do not exercise strenuously. 2. False contractions: If the stomach is hard and tight at night, but not during the day, and then relieved for a while, considered false contractions, which is a normal physiological phenomenon, generally false contractions during pregnancy, pregnant women do not have to worry too much. It is recommended that pregnant women who have a hard and tight stomach, such as rest, observation does not relieve, to go to the hospital in a timely manner, such as preeclampsia should be carried out in a timely manner to protect the fetus treatment, pregnancy discomfort with the clinic.