During ovulation, women’s hormone levels are too high, causing the secretion of a large number of glands in the vagina and the shedding of mucus plugs from the cervical canal. As the endometrium is partially shed during ovulation, bleeding and vaginal secretions are mixed, and when eliminated from the body, there will be a large amount of sticky leucorrhea with blood. This is a normal physiological phenomenon and can be observed for 2-3 days until ovulation, and most of them can be relieved by themselves. There is also pregnancy. After pregnancy, the leucorrhea increases due to the increase of estrogen and progesterone, and the secretion becomes sticky. When the embryo is in bed, the endometrial lining is slightly shed, causing slight bleeding, which mixes with the normal leucorrhea to form a sticky leucorrhea with blood.