The contractions of pregnant women in mid-pregnancy may be normal physiological contractions or pathological contractions due to pre-eclampsia, so it is necessary to seek medical attention in time to clarify the causes of the disease and then target treatment. Common causes and treatment methods 1, physiological contractions: pregnant women in mid-pregnancy often appear irregular contractions phenomenon, appearing time is concentrated in the night, after holding urine, changing position, the number of pregnant women awake less. The normal physiological contractions of pregnant women do not cause abdominal pain and vaginal bleeding, nor do they cause shortening of the cervix and dilatation of the uterus. For this type of contractions pregnant women do not need to be too nervous, as long as to ensure rest, avoid sex, such as sleep can be properly padded legs, can reduce the discomfort caused by contractions; 2, pathological contractions: if the pregnant woman in the presence of contractions accompanied by abdominal pain, abdominal pain for 10-15 minutes once, and gradually shortened, each contraction lasts about 20-30 seconds, and vaginal bleeding and other phenomena, may be pre-eclampsia If the contractions are pathological and caused by miscarriage, the pregnant woman should go to the hospital as soon as possible with her family for fetal preservation treatment. Pregnant women should pay attention to their dietary habits, eat more nutritious and light food, eat less greasy and spicy food, avoid exertion, exercise moderately every day, pay attention to the cleanliness of the vulva and change underwear daily.