健康的妇女都有白带。白带来源于子宫颈和阴道,内有宫颈分泌的黏液、阴道黏膜的渗出物、子宫和阴道脱落的表皮细胞,以及少量的白细胞和非致病性阴道细菌等。它使阴道保持一定的湿度,对防止病菌侵入很有好处。正常白带应是白色的,有时透明,有时黏稠,无异味。青春期白带受雌激素影响而分泌增多,并呈周期性变化。排卵期的白带透明、量多,而其他时间则量少、黏稠。此外,在天气炎热、从事体力劳动以及性冲动时,这些液体分泌量也会增加,有时还可能外流。因此,应该注意保持阴部卫生,经常用温水洗外阴。即使在平时白带量不多时,也要注意外阴清洁,这样能减少疾病的发生。值得注意的异常白带有下列几类: Healthy women have leucorrhea. Leucorrhea from the cervix and vagina, there are cervical secretions of mucus, vaginal mucosal exudate, uterine and vaginal shedding of epidermal cells, and a small amount of leukocytes and non-pathogenic vaginal bacteria. It keeps the vagina at a certain level of humidity and is good for preventing bacteria from intruding. Normal leucorrhea should be white, sometimes transparent, sometimes sticky, no smell. Adolescent leucorrhea affected by estrogen secretion increased, and cyclical changes. Ovulation leucorrhea transparent, large amount, while other times the amount of less viscous. In addition, when the weather is hot, engaged in manual labor, and sexual urges, the amount of these fluids is increased, and sometimes outflowing. Therefore, we should pay attention to maintaining genital hygiene, often wash the vulva with warm water. Even when the amount of leucorrhea is usually small, but also pay attention to vulva clean, this can reduce the incidence of the disease. Notable abnormal vaginal discharge with the following categories: