Symptoms before labor, including irregular contractions, the feeling of the fetus descending and vaginal redness. 1. Irregular contractions: after the head of the fetus descends, pregnant women always feel pain at the upper edge of the pubic symphysis, hardness of the stomach and other uterine contractions, but the pain lasts for a short period of time, with long and irregular intervals, and disappears during the day, and it is not accompanied by the disappearance of the cervical canal and dilatation of the uterine opening. 2. Fetal descent: after the fetus is in the pelvis, the height of the uterus will fall, and many pregnant women will feel a great increase in appetite, and with the descent of the fetal head will oppress the bladder, with frequent urination, urinary urgency, dysuria and other discomforts. 3. Vaginal redness: refers to a small amount of vaginal bleeding, which is caused by irregular contractions, resulting in the peeling off of the membranes between the fetus and the uterine wall, resulting in a small amount of vaginal bleeding. It is recommended that pregnant women with pre-partum symptoms should go to the hospital for timely examination and preparation before delivery, and usually follow up promptly if there is any discomfort such as increased vaginal bleeding, severe abdominal pain, premature rupture of membranes, and so on.