Why is my period so light and lasting so long?

Menstruation is something women have every month and it is a normal physiological phenomenon. Menstruation is also a way for women's liver to detoxify. Low menstrual flow means that women have too little blood during their menstruation, or that the time of menarche is too short. Menstrual volume is the total amount of blood loss during a menstrual period. Normal menstrual volume is 20-8b250l. It is very common to have scant and dark menstrual flow. So, why is the menstrual flow less and last longer in winter? How to take care of light menstrual flow?

Why do I have less menstrual flow and longer periods in winter?

What is the reason for light menstrual flow? Some women have very light menstrual flow from the beginning of their first menstruation. This may be caused by uterine hypoplasia. If the menstrual flow, which has always been normal, suddenly decreases, it may be caused by abnormal hormone secretion or anovulatory menstruation.

The main reasons for the small amount of menstrual flow include the following three aspects:

1. Uterine hypoplasia. Menstruation is the shedding and bleeding of the uterine wall that occurs with the change of the uterine and ovarian cycle. If the uterus is underdeveloped, such as the uterus is not large or is deformed, only a small amount of uterine wall will fall off in each menstrual cycle, resulting in a small amount of menstrual flow. In addition, endometrial tuberculosis causing endometrial degeneration or curettage causing damage to the uterine wall can also lead to scanty menstruation or even amenorrhea.

2. Abnormal growth hormone metabolism. Estrogen can stimulate the proliferation of women's uterine wall. If the body's hormone secretion is abnormal, the proliferation of the uterine wall will not reach the required thickness, resulting in less menstrual flow. Excessive dieting, excessive work and rest time, bad mood, urinary system diseases, etc. will affect the female endocrine environment, causing abnormal hormone secretion and small menstrual flow.

3. Anovulatory menstruation. Women who do not ovulate will still have their periods, which is medically called "anovulatory menstruation." This is different from normal menstruation and falls into the category of "multifunctional abnormal uterine bleeding". The characteristics of this type of menstruation are irregular time and very little blood.