Frequent contractions without pain are usually considered to be caused by fetal activity or preterm labor, and need to be analyzed on a case-by-case basis. 1. Fetal activity: the fetus needs to change positions in the uterus, but due to limited space, it may pull the ligaments around the uterus or the uterine muscle in the process of its activities, resulting in uterine contractions, which are usually irregular and not strong. 2. If the mother feels frequent contractions, it may be due to the fetal activity is too intense or amniotic fluid is low, there is no need to be nervous, pay close attention to the dynamics of contractions, if the amniotic fluid is too low, it may need timely treatment; 2, preeclampsia: Usually in late pregnancy, the mother will appear uterine contractions irregularly and asymmetrically painless, often frequent at night, daytime is lighter, at this time if the fetal heart rate monitoring, it will be found that there is a frequent contraction of maternal If fetal heart rate monitoring is performed at this time, frequent contractions will be detected, but the intensity and duration are shorter, which is the state of preterm labor and should be relaxed and pay attention to the changes of contractions in time. However, some women who are more sensitive to pain may feel a little pain during this period, which is normal. Since everyone has a different level of pain tolerance, some mild pain is not serious for some women and may not even be felt. Therefore, frequent contractions should be noted, as they may lead to cervical dilatation or even uterine dilatation, and need to be evaluated by a doctor to avoid accidents. If the contractions are frequent and regular, and begin to be accompanied by abdominal pain that becomes more intense, labor may be imminent, so you should stay in the hospital, stay relaxed, and cooperate with your doctor as you wait for delivery.