Which comes first, leucorrhea or menstruation?

In a normal menstrual cycle, leucorrhea usually appears before menstruation.

Leucorrhea is a natural secretion from the female vagina. Its existence is a way for the vagina to clean itself and keep moist. Leucorrhea is produced throughout the menstrual cycle, but before the menstruation, due to changes in hormone levels in the body, the properties and amount of leucorrhea may vary. Usually, in the middle stage of the menstrual cycle, that is, around ovulation, leucorrhea will become thinner and more transparent, in order to facilitate the passage of sperm. When the menstruation is about to come, the leucorrhea may become thicker and the amount may also decrease.

Menstruation marks the periodic shedding of the endometrium. Menstruation usually occurs after changes in leucorrhea, that is, if there is no pregnancy after ovulation, the endometrium will begin to shed, forming menstruation that flows out of the body. The arrival of menstruation means the beginning of a new physiological cycle.

The specific manifestations of leucorrhea and menstruation vary from person to person. Some women may feel obvious changes between leucorrhea and menstruation, while others may not feel it very obvious. Lifestyle habits, health conditions, and environmental factors may all have an impact on leucorrhea and menstruation.

In terms of maintaining women's health, observing changes in leucorrhea and menstruation is an important self-care measure. Understanding their normal manifestations and possible abnormal signals can help to detect and deal with potential health problems in a timely manner.