The body fluid secreted by women when they are in heat is not leukorrhea, but Bach’s gland fluid, commonly known as “love juice”, which is somewhat different from leukorrhea. Vagina daily secretion of body fluids leucorrhoea, and sexual arousal when the secretion of the body fluids Bachmann glandular fluid, although all from the vagina outflow, but the composition, texture, smell and color are different. Bartholin’s gland fluid, a mixture of secretions from the vestibular glands, cervical glands, endometrium, and exudate from the vaginal mucous membranes, and shed vaginal epithelial cells, is also secreted when there is no sex, and secretion increases during sexual arousal. It is a white or transparent liquid, which has the role of lubrication, protection of sperm, and judgment of pleasure. Leukorrhea, which is a mixture of vaginal mucosal exudate, cervical canal and endometrial gland secretion, is usually secreted more in the middle of two menstrual periods. Normal leukorrhea is white or transparent thin paste or egg white, sticky, no fishy smell, small amount, has the role of protecting the vaginal wall, judging gynecological health.