The white stuff secreted from the vagina is leukorrhea, which is a normal physiological phenomenon as long as it is not abnormal in color or shape. In a mature woman, the secretions from the uterine glands, cervical glands and vaginal wall cells are mixed with vaginal shed cells to form leukorrhea, which is excreted through the vagina under the influence of estrogen and progesterone secreted by the ovaries. The leukorrhea changes periodically depending on the amount of estrogen and progesterone produced by the ovaries. Normal leukorrhea is a milky white or colorless mucus with no odor, which changes constantly with the menstrual cycle. The amount of secretion at the end of the menstrual period is relatively small, and as the amount of estrogen and progesterone secretion in the body gradually increases, the leucorrhea will gradually increase and become thinner, and at the time of ovulation will appear watery leucorrhea, and in the form of silk. If the leucorrhea is yellowish, greenish or bean curd-like, there is a possibility that the leucorrhea is infected with some kind of germs causing vaginitis.