The liquid discharge of water in mid-pregnancy may be caused by urine leakage, or it may be related to vaginal discharge or premature rupture of fetal membranes. 1. urine leakage, mid-pregnancy with watery liquid outflow is likely to be due to the uterus increases pressure on the bladder, resulting in a decrease in bladder volume and urine leakage phenomenon, usually in sneezing or coughing to increase the abdominal pressure after the emergence of the phenomenon, do not need special treatment. 2. Vaginal secretions, mid-pregnancy water-like secretions may be due to changes in hormone levels after pregnancy, metabolism and the phenomenon of increased vaginal secretions, generally no odor and discomfort, if there is a peculiar smell or itching symptoms, but also be vigilant about whether or not the infection of vaginitis, cervicitis and other diseases caused by. 3. Premature rupture of fetal membranes, mid-pregnancy, watery liquid outflow may also be premature rupture of fetal membranes, amniotic fluid outflow phenomenon. Generally there is no flavor, for the watery secretion, whether standing or lying down will continue to appear watery secretion, to go to the hospital in time to check, if the amniotic fluid outflow is too much need to terminate the pregnancy. Mid-pregnancy with watery liquid outflow, it is recommended to go to the hospital in time for a clear diagnosis and symptomatic treatment.