30 weeks of pregnancy contractions frequent to dozens of times a day, it is recommended to seek medical treatment, the birth control, suppress contractions symptomatic treatment. At 30 weeks of pregnancy, frequent irregular contractions may further develop into regular contractions, leading to dilatation of the uterine opening and triggering miscarriage or preterm labor. At this time, the fetus is not yet mature, cardiorespiratory function is not yet fully developed, after preterm delivery, the chance of survival is lower, so active treatment is needed to preserve the fetus until full term. Treatment mainly includes inhibiting uterine contractions, promoting fetal development, and bed rest. To inhibit uterine contraction, magnesium sulfate, ritodrine hydrochloride and other drugs can be used intravenously, and oral nifedipine tablets, dydrogesterone tablets and other drugs can also be used. To promote fetal development, dexamethasone can be used for intramuscular injection, which can promote the maturation of fetal lung tissue and increase the survival rate of the fetus. Bed rest can reduce uterine contractions. When frequent uterine contractions occur, it is recommended to seek prompt medical attention and standardize treatment under the guidance of a doctor.