The flow of cervical mucus is not a sign of dilatation and therefore does not necessarily indicate that the uterus is open. Usually the opening of the uterus and the degree of opening is an important basis for judging the labor process and requires the judgment of a medical professional. In general, if a small amount of cervical mucus is discharged, if there are no other symptoms, just pay attention to it and do not worry too much. If a large amount of cervical mucus is discharged, it may be the discharge of a cervical mucus plug, which generally indicates a shortening of the cervical canal, a sign of preterm labor, and may be accompanied by an opening of the uterine opening. However, normal people cannot distinguish accurately with the naked eye, so when cervical mucus flows, it is necessary to combine with contractions, redness and other symptoms to determine whether the opening of the uterus is open. If a pregnant woman secretes a lot of sticky cervical mucus, she needs to go to the hospital for testing to observe the condition of the cervix, whether the fetal head is in the pelvis, etc. If no factors affecting vaginal delivery exist, you can observe it first. If the delivery is not expected and the cervical mucus plug has been discharged, you will need to follow the doctor’s instructions for the relevant fetal preservation treatment. If there is brown or bloody cervical discharge at home, accompanied by gradually regular and frequent contractions, which can reach 2-3 times in 10 minutes, and amniotic fluid flowing out of the vagina, it may be a sign that the opening of the uterus or labor is approaching, so you need to put your buttocks up and stay in the lying position to avoid contamination of the perineum, and call 120 to the hospital immediately to improve the examination and await delivery.