40 weeks pregnant like snot discharge and blood, like snot discharge is the cervical mucus plug, blood is the phenomenon of redness before labor, which indicates that the mother is about to give birth, you should go to the hospital in time to wait for labor. The cervical mucus plug is a thick, transparent liquid substance secreted by the cervical glandular epithelium, which can separate the uterine cavity from the vagina, preventing retrograde bacterial infections, and has a protective effect on the mother, which is a normal phenomenon and no need to worry too much. 40 weeks pregnant is already a full-term pregnancy, the appearance of red blood in the secretion is a sign of impending labor, some patients may also have the symptom of vaginal water, you need to go to the hospital in time to wait for the birth of a baby, usually within 24-18 hours after the redness of the mother will enter the process of labor, there are regular uterine contractions. If a woman in her 40th week of pregnancy has a snot-like discharge with blood, it is recommended that she go to the hospital in time for labor.