13-year-old girl with more leukorrhea, most of them belong to the normal physiological situation, may also belong to the pathological situation, as follows: 1, physiological situation: under normal circumstances the girl is 9-11 years old, began to appear secondary sexual characteristics, that is, the emergence of pubic hair, armpit hair, the labia major and minor labia development and the onset of menstruation. In the breast development after about 2 years, that is, at the age of 11-12 years of menstruation, at this time more leukorrhea. It is normal if the leukorrhea has not stained the diaper and there is no itching of the pubic area or smelly leukorrhea. Usually a few days before menstruation, more leukorrhea symptoms are more obvious, at this time you need to pay attention to local care, every time you need to wash the perianal area after defecation, need to wipe from front to back after urination, before going to bed to take a shower, to avoid the basin bath, otherwise it is easy to cause local infections; 2, pathological conditions: if the leukorrhea is accompanied by a lot of odor and local itching, suggesting that there may be vaginitis, need to strengthen the hygiene of care, wash your hands diligently, you need to consult a doctor to find out the cause and treatment.