The redness of labor, i.e., a small amount of light bloody discharge from the vagina before the labor starts, which disappears after the redness is seen, is usually a sign of preterm labor, so it is necessary to consult a doctor in time and wait for the labor to start. The premonitory labor means that 24-48 hours before the start of labor, you can see a light bloody mucus discharge from the vagina, usually in small amount, this is the separation of the fetal membranes near the mouth of the cervix and the uterine wall resulting in bleeding caused by the rupture of the capillaries and mixed with the cervical tube mucus, which is a more reliable sign of the beginning of the labor. There may be irregular contractions and a sensation of the fetus descending when labor is imminent. It is recommended to seek medical attention after the onset of labor, monitor the fetus and observe the pregnant woman’s physical condition, pay attention to the amount of vaginal bleeding, and wait for the birth.