There are a number of reasons for low menstrual flow, as follows.

1. Caused by low estrogen levels: Estrogen can stimulate the proliferation and thickening of the endometrium in preparation for conception. If conception does not occur, the proliferating lining will shed blood to form menstruation. Low levels of estrogen in the body will cause the endometrium to not proliferate thick enough and bleed less during menstruation, which will affect conception in the future.

　 2, caused by endocrine system diseases: menstrual cycle stabilization after the amount of menstrual blood continues to be too small, you need to go to the hospital as soon as possible, serious cases can lead to amenorrhea. As tuberculous lesions destroy part of the uterine lining, check estrogen levels and uterine size, and look for the cause of low estrogen.

3、子宫发育不良引起：少数妇女初潮后一直月经少，可能系个体差别导致，同时发现身体发育不理想，如乳房、臀部隆起不明显，就要引起警惕，看排卵生育功能是否正常，以防育龄期不孕现象发生，临床表现为子宫小，子宫前屈、子宫后屈，雌激素分泌不足，将影响到卵巢功能。

　 4, caused by organic diseases: the uterus itself lesions such as endometrial dysplasia, women of childbearing age in the emergence of low menstrual flow, or accompanied by lumbar pain, lumbago, dysmenorrhea, fatigue, leukorrhea abnormalities, vulvar itching or abnormal vaginal bleeding and other symptoms, a variety of factors can cause women's menstruation too little, or even amenorrhea.

　 5, spontaneous abortion, abortion factors: multiple abortion surgery or surgical roughness, damage to the uterine basal layer of the lining or the uterine cavity adhesions, may may cause low menstrual flow. Postpartum hemorrhage sometimes first manifests low menstrual flow, followed by amenorrhea.

6, ovarian disease factors: polycystic ovary syndrome can also be seen menorrhagia, often accompanied by weight gain, followed by amenorrhea. Premature ovarian failure is also the first manifestation of low menstrual flow, followed by amenorrhea. 　　 7, other: low menstrual flow with late menstruation should first rule out miscarriage or ectopic pregnancy, urine, blood pregnancy test and ultrasound can be identified. The low menstrual flow must be timely examination, and then symptomatic treatment.

Low menstrual flow is a disease that every female friend will be afraid of. Low menstrual flow can lead to amenorrhea in serious cases, and in more serious cases, it can develop into menopause, and young women who are menopausal will be infertile, so the problem of low menstrual flow is not a small problem, but every female friend should not be ignored. First of all, we should know what kinds of low menstrual flow are categorized into, the first kind, the usual

menstrual cycle

The main reason is premature ovarian failure. The ovaries have the role of ovulation, and if ovarian function is diminished, ovulation will be affected, thus affecting the amount of menstruation. Secondly, women who have had an abortion will not only have less menstrual flow, but also have prolonged menstrual periods. Also, women who are disorganized in their diet and work routine, excessive dieting to lose weight or frequent and sudden late nights are also prone to the problem of low menstrual flow. It is better for women to avoid these basic factors to avoid the occurrence of low menstrual flow.

In addition, cervical adhesions due to multiple abortions are also a cause of low menstrual flow.

Hello, in order to know the causes of low menstrual flow it is important to know what factors affect the amount of menstruation.

Menstruation is vaginal bleeding triggered by the cyclical shedding of the uterine lining, and the amount of menstruation is determined by the thinness or thickness of the uterine lining.If the lining of the uterus is too thin, then the menstrual flow will be less; if the lining of the uterus is too thick, or if the area of the lining of the uterus has been increased due to some diseases such as endometrial polyps or fibroids, it can trigger heavy menstrual flow.

Endometrial thickness is affected by hormone levels

The thickness of the endometrium is not static, but changes cyclically with the menstrual cycle under the influence of estrogen and progesterone. During menstruation, the endometrium is the thinnest, and as the level of estrogen in the body rises, the endometrium gradually thickens and can reach a thickness of 10mm or even thicker. When the level of estrogen and progesterone in the body decreases, the endometrium sheds and a new menstrual cycle is entered.

So in women with poor ovarian function and low estrogen level in the body, they will have thin endometrium and low menstruation. According to the research, when the thickness of the endometrium is less than 0.7mm, the chances of fertilized egg implantation are significantly reduced, so thin endometrium will not only have low menstruation, but also lead to infertility. When you find low menstruation and thin endometrium, you can check the ovarian function first.

Abortion may damage the lining of the uterus

In addition to cyclic changes in the endometrium due to changes in hormone levels in the body, the endometrium can also be damaged due to a number of anthropogenic factors, which can affect the thickness of the endometrium. For example, a history of multiple abortions, diagnostic scraping, hysteroscopic electrosurgery and other uterine operations may lead to damage to the endometrium, especially when the damage to the endometrial basal layer, because the basal layer does not have the ability to regenerate, which will lead to even in the case of normal hormone levels endometrium can not be proliferated to a certain thickness, and there will be a noticeable decrease in the number of menstrual periods. This is also the reason why some people who have had more abortions have significantly reduced menstrual flow.

I have seen women who have had 14 abortions and each time they had a very light period and only used 2-3 pads. That's why it's important for women who have never had children to use birth control to protect their reproductive function and minimize the damage to the uterus from abortion.

The main causes of low menstrual flow are damage to the uterine lining by surgical operation and low estrogen level due to decreased ovarian function. Therefore, if you want to further confirm the cause of low menstrual flow, you need to go to the hospital for gynecological ultrasound examination and sex hormone test, and the doctor will make further diagnosis.

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　　Low menstrual flow is one of the common symptoms of menstrual disorders in women, which is characterized by normal menstrual cycle but significantly reduced menstrual flow or menstrual period of only one day, or even spotting in severe cases. Long-term low menstrual flow can affect health, and even lead to amenorrhea, infertility and so on. So, what are the causes of low menstrual flow?

　　The causes of low menstrual flow include the following:

　　1. Uterine dysplasia. Some women have very little menstrual flow since menarche, which is mostly due to uterine dysplasia, such as a small or malformed uterus, which leads to low menstrual flow.

　　2. Some drugs cause low menstrual flow. Some medicines can lead to low menstrual flow, such as contraceptive pills, medicines for treating mental illness, antitumor drugs, and medicines for treating endometriosis.

　　3, abortion, scraping caused by low menstrual flow. After many abortions and the surgical process is not careful, it will lead to the damage of the endometrium of the uterine basal layer or the emergence of the uterine cavity adhesion; or scraping surgery, etc. lead to the damage of the endometrium, all these factors will cause low menstrual flow, and even the situation of amenorrhea.

　　4. Anovulatory menstruation. Women who do not ovulate will also have menstruation, which is called "anovulatory menstruation" in medical terms. This is not the same as normal menstruation and falls under the category of "functional uterine bleeding". This type of menstruation is characterized by irregularity and low blood flow.

　　5、Abnormal hormone secretion. Estrogen will stimulate the proliferation of the female endometrium, if the hormone secretion in the body is abnormal, it will lead to the proliferation of the endometrium can not reach the required thickness, resulting in low menstrual flow. Excessive dieting, poor work and rest, poor mood, reproductive system diseases, etc. will affect the female endocrine environment, resulting in abnormal hormone secretion and low menstrual flow.

　　How to regulate low menstrual flow? First of all, you should go to the hospital in time to check, if it is caused by diseases, you should follow the doctor's instructions to actively treat the original disease. In addition, you should pay attention to the following points:

　　1. Pay attention to diet. To avoid eating cold, spicy stimulating food, can drink more water, intake of fiber-rich food, keep the stools smooth, especially during the week or so before the onset of menstruation. Once menstruation, appropriate to eat some warm food, you can drink brown sugar water, drink red bean soup to regulate the body.

　　2, pay attention to labor and leisure in moderation. During menstruation, women must avoid intense and prolonged exercise, pay attention to rest, ensure sleep, regular routine, avoid staying up late.

　　3. Pay attention to keeping warm. Avoid less contact with cold water, especially during menstruation, do not take cold showers. Usually in the air-conditioned room sitting for a long time, it is best to drape a thin blanket, pay attention to keep warm to avoid getting cold.

　　4, pay attention to hygiene. Usually pay attention to the cleanliness and hygiene of the external genitalia, especially during menstruation, pay more attention to timely cleaning of the pubic area to prevent infection. Diligently wash and change the internal medicine, do not have intercourse during menstruation.

　　5, pay attention to relax the mood. Adverse emotions, such as excessive mental stimulation, nervousness, sadness will lead to endocrine disorders in the human body, resulting in menstrual abnormalities, especially low menstrual flow of female friends need to adjust the mind, pleasant life.

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There are a number of reasons for low menstrual flow, but let's start by understanding just how much menstrual flow is considered low and how much is considered normal?

Normal menstrual flow, we generally consider between 5 and 80 ml. How much is 5 ml? I don't know if you've ever seen a 5 ml syringe. If that's not specific enough, then the cap of a 500 ml mineral water bottle, filled to the brim, is about 5 ml.

If it is more than 5 milliliters, and you have always had the same amount of menstruation, which is usually regular, and the tests have ruled out congenital dysplasia, then you should consider what you "think" is a small amount of menstruation.

Pathologic causes of low menstrual flow are common: congenital uterine dysplasia, thin lining, low estrogen level, polycystic ovaries and so on. Especially after abortion, the menstrual flow suddenly decreases, then we consider that it may be the uterine cavity adhesion after abortion, resulting in the endothelium can not be normal development and shedding, thus the menstrual flow decreases.

To find the cause of low menstrual flow, you need to see whether it is physiological or pathological. Sometimes excessive emotional stress and prolonged anxiety can also lead to low menstrual flow.

It is best to go to the hospital for relevant examinations, if it is pathologic, it needs to be treated. If it is physiological, everything is normal, then a little less does not matter, but to save sanitary napkins it! Nowadays, sanitary napkins and tampons are so expensive that I feel like I can't afford to use them anymore!

Before knowing the causes of low menstrual flow, we need to know the definition of low menstrual flow in Chinese medicine. In Chinese medicine, it is called menorrhagia, which is mainly manifested by a normal menstrual cycle and a significant decrease in menstrual flow, or the duration of menstrual flow is less than two days, or even dripping. Generally speaking, a menstrual flow of less than 20mL is called hypomenorrhea.

So what are the causes of menorrhagia in Chinese medicine? The pathogenesis of low menstrual flow is either false or true. The deficiency is mostly due to the deficiency of essence and blood in the human body, and the deficiency of Chong Ren and blood sea, the body's menstrual blood is less; the real one is mostly due to the stagnation of silt and blood in the body, or phlegm and dampness blockage, Chong Ren blockage, and the blood does not run well, which leads to the low menstrual flow. Although the etiology and mechanism of the disease has a distinction between false and solid, but clinically to false evidence or false mixed with solid more, and the late stage of this disease can often develop into amenorrhea, because once you find their menstruation becomes less, should be timely to find out the cause of the disease, the symptomatic treatment.

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Many women are afraid of low menstrual flow, but doctors are more afraid of heavy menstrual flow because more may indicate more serious endocrine diseases, gynecological tumors, and coagulation disorders. Heavy bleeding also leads directly to anemia. Low menstrual flow, on the other hand, is usually not associated with diseases that jeopardize health, much less direct damage.

So does it mean that having a low menstrual flow is not worth taking seriously? Of course not, there are two causes of low menstrual flow that should be taken seriously.

First, menorrhagia during menopause. After menopause, some people will have excessive menstruation and bleeding, which is caused by excessive proliferation of the uterine lining, while some people will have less menstruation, which is due to the decrease in the secretion of oestrogen, and the growth of the uterine lining without being stimulated by oestrogen.

The health effects of this type of menorrhagia are the result of estrogen deficiency, and treatment is based on a comprehensive assessment of the physical state and hormone replacement therapy in the absence of contraindications.

The benefits of estrogen supplementation are: reduction of symptoms of menopause such as sweating and hot flashes, increased calcium absorption to prevent osteoporosis, protection of the vascular system against atherosclerosis, and benefits to the skin, eyes, and reproductive organs.

Second, low menstrual flow due to endometrial damage. These patients have a history of abortion, purging or have suffered from endometrial tuberculosis or severe endometritis. The basal layer of the endometrium is damaged and does not respond to estrogen stimulation, so the endometrium is unable to grow, and therefore the menstrual flow is low. The main danger of this type of low menstrual flow is that it affects fertility. If there are no fertility requirements and there is no acute inflammation, treatment is not required.

The point is that when there is a low menstrual flow, tests should be done to determine the cause of the low flow and treatment should be given accordingly to the individual's specific situation and fertility needs.

First of all, thank you for your question. Here is a brief overview of what causes a decrease in menstrual flow.

There are many reasons for reduced menstrual flow, and Chinese and Western medicine have different perceptions of this problem. Chinese medicine believes that decreased menstrual flow is related to kidney deficiency, insufficient qi and blood, liver stasis and qi stagnation, phlegm-dampness obstruction, spleen deficiency and so on. Besides, changes in environmental factors can also cause decreased menstrual flow, such as prolonged mental stress, excessive fatigue, excessive dieting, overly oily diet and other reasons. In addition there are also patients after abortion who may have reduced menstrual flow in a short period of time. There is also the possibility of abnormal hormone secretion. The hormones secreted by women can stimulate the growth of the endometrium. If the hormone secretion in the body is abnormal, the growth of the endometrium will not reach the required thickness, resulting in low menstrual flow. Excessive dieting, poor work and rest, poor mood, reproductive system diseases, etc. will affect the female endocrine environment, resulting in abnormal hormone secretion and low menstrual flow. There is also uterine dysplasia. Menstruation is the flaking and bleeding that occurs along with the changes in the ovarian cycle. If the uterus is underdeveloped, such as a very small or malformed uterus, only a very small amount of endometrial lining will be shed in each physiological cycle, resulting in low menstrual flow. In addition, endometriosis caused by endometrial tuberculosis or damage to the endometrium caused by curettage, etc. can also result in scanty menstrual flow or even amenorrhea. Another condition is anovulatory menstruation. Women who do not ovulate will also have a period, which is medically known as "anovulatory menstruation". This is not the same as normal menstruation and falls under the category of "functional uterine bleeding". This type of menstruation is characterized by irregularity and low blood flow. Lastly, there is another condition, menopause, in which women have fewer periods each time they approach menopause, which is a normal physiological phenomenon.

I hope the above answer will help you.

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In Traditional Chinese Medicine (TCM), low menstrual flow refers to a situation where a woman's menstrual period is normal, but her menstrual flow is significantly less than normal (constant); or her period is shortened, or even spotting occurs, which is referred to as low menstrual flow.

In reality, the menstrual flow is low and is usually combined with late menstruation.

So what is the cause of low menstrual flow?

What do western doctors think causes low menstrual flow?

The causative factors of low menstrual flow are interpreted differently by Chinese and Western medicine.

According to Western medicine, the main causes of low menstrual flow include:

1. Dysfunction of the hypothalamic-pituitary-ovarian axis;

2. Damage to the basal layer of the endometrium by uterine surgery;

3. Caused by adhesions in the uterine cavity, etc.

Western medicine believes that irregular menstruation in women can be triggered by dietary disorders, endocrine disorders, mental and emotional factors, miscarriages and ovarian failure.

Explanation of Chinese medicine causes of low menstrual flow

For the analysis of the causes of low menstrual flow in women, Chinese medicine believes that there is a difference between deficiency and reality.

Low menstrual flow in the case of deficiency is mostly caused by deficiency of the Chong Ren and Blood Sea and insufficient source of menstrual blood.

Low menstrual flow in solid cases is mostly caused by Qi stagnation and blood stasis or phlegm-dampness obstruction, resulting in congestion of the Chong Ren, which leads to unsmooth blood flow and low menstrual flow.

However, in actual clinical practice, it is common to see a mixture of actual and deficiency symptoms of low menstrual flow, which means that there is deficiency of the Blood Sea, insufficient source of menstrual blood, and at the same time, there is Qi stagnation and Blood stasis or phlegm-dampness obstruction which makes the blood flow unsmooth and thus leads to low menstrual flow. This results in menorrhagia like Kidney deficiency with Blood stasis, or Kidney deficiency with Phlegm-dampness.

Clinically, for the deficiency evidence of low menstrual flow, blood deficiency and kidney deficiency are the most common.

As for the solid evidence of low menstrual flow, it mostly appears as cold condensation, qi stagnation, phlegm obstruction and heat burning, while cold condensation and qi stagnation are more common.

Therefore, Chinese medicine practitioners will first identify and classify women with low menstrual flow, and then treat them according to the type.

Hopefully, it's the same book answer that will be helpful in deciphering the causes of low menstrual flow.

Again, to the subject for inviting a reply, thank you.

1. Excessive dieting for weight loss

2, work and rest without endocrine disruption

3. Frequent Sulking Mental Depression

4. Induced abortion

6. Lesions of the chest