A snotty discharge on the due date is not a sign of labor, it is a sign of labor when there is a premonitory sign of labor. Before labor is initiated, there are often symptoms that indicate impending labor, such as irregular contractions, a sense of the fetus descending, and a small amount of vaginal discharge of light blood (commonly known as redness), which is known as the precursor to labor. 1. Irregular contractions: also known as false labor. Before labor starts, due to the increased sensitivity of the uterine muscle layer, irregular contractions can occur. Its characteristics: ① contraction frequency is inconsistent, short duration, long intervals and irregular; ② contraction intensity is not gradually increased; ③ often appear at night and disappear in the morning; ④ not accompanied by cervical canal shortening, dilatation of the uterine mouth, etc.; ⑤ can be suppressed by sedatives. 2. Fetal descent: the uterine fundus is lowered due to the descent of the fetal preluteal part and the articulation of the pelvis. Pregnant women feel more comfortable in the epigastric region, and the descending part of the prelude may press on the bladder and cause frequent urination. 3. Seeing red: 24-48 hours before the start of labor, due to the separation of the fetal membranes near the mouth of the cervix and the uterine wall there, capillary rupture and a small amount of bleeding, and the mucus in the cervical canal mixed with the discharge of light bloody mucus, called the red, is a more reliable sign of the imminent start of labor. During pregnancy, you should pay attention to rest more, at the same time, you should relax, avoid tension, anxiety, any discomfort should go to the hospital in a timely manner, by the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.