Generally speaking, blood in the leukorrhea at 37 weeks of pregnancy is mostly considered to be a manifestation of redness at the onset of labor. Most pregnant women experience a small amount of vaginal bleeding within 24-48 hours before labor, or even within a week in some cases, as the fetal membranes near the endocervical opening detach from the uterine wall, and some women experience blood in the leukorrhea. Therefore, most are more reliable indications that labor is likely to begin soon. Patients must pay attention to rest, avoid strenuous exercise, minimize walking, and pay attention to the cleanliness and hygiene of the vulva. It is necessary to go to the hospital as soon as possible for examination to clarify the diagnosis and the next treatment plan.