The onset of redness is a sign of impending labor, but how long it takes to give birth varies greatly from person to person, with most people going into labor a few days or even a week after the onset of redness. The onset of redness during labor indicates a shortening of the cervical canal and separation of the fetal membranes from the cervical area, resulting in the rupture of capillaries and the discharge of bloody discharge from the vagina. Usually, 3-7 days after the onset of redness, the pregnant woman will experience regular uterine contractions and go into labor. Vaginal bleeding and redness in late pregnancy is a precursor to full-term labor and is a common phenomenon after full term. If there is no abdominal pain, there is no need to worry. Once there is abdominal pain, regular pain, the interval is gradually shortened, the intensity of the pain is gradually increased, and regular contractions are formed, then the labor process officially enters, and you need to send to the doctor immediately for delivery. Usually, the opening of the uterus is usually complete in 11-12 hours for primiparous women and 6-8 hours for transitional women. In case of slight redness in late pregnancy, pregnant women are advised to be prepared for hospital admission. If there is a lot of vaginal bleeding and the amount of bleeding exceeds the usual amount of menstruation, you should be alert for abnormalities such as placenta praevia.