The contractions after sex in mid-pregnancy should relax, pay attention to rest, reduce sexual excitement, if necessary, follow the doctor’s advice to take drugs to inhibit contractions. The contractions after sex in mid-pregnancy are still a relatively common phenomenon during pregnancy. Sexual excitement will stimulate the uterus to contract, in the contraction should immediately suspend sexual intercourse, relax, reduce the frequency of sexual intercourse, more rest, observe the contraction relief. If the contractions subside or there is no other discomfort, no special treatment is needed. However, if the contractions persist or are accompanied by vaginal bleeding, you need to go to the hospital in time. In order to avoid preterm labor, you should follow the doctor’s instruction to apply contraction-suppressing drugs such as progesterone, ritodrine hydrochloride, and diethylstilbestrol, etc., so as to ease the contractions. During pregnancy, pregnant women should pay attention to rest, relax, avoid tension and anxiety, and go to the hospital in time if there is any discomfort, so that the doctor can make a clear diagnosis and cooperate with the doctor to deal with the symptoms.