What is the reason for less menstrual flow sometimes?

Menstruation is a physiological cycle that adult women have every month. The amount of menstruation for each woman is different, and the menstrual conditions of women are different every month. Sometimes you may feel back pain during menstruation, sometimes you may have severe abdominal pain, and sometimes the amount of menstruation may suddenly decrease. What is the reason for scanty menstrual flow? Let me give you a detailed introduction below.

1. What is the reason for scanty menstruation?

Oligomenorrhea refers to the fact that a woman has too little blood during her menstrual period, or her menstrual period is too short. Menstrual volume refers to the total amount of blood lost during one menstruation. Normal menstrual volume is 20-80ml. If it is less than this standard, it is considered as too little menstrual volume. Generally speaking, if a pack of sanitary napkins (10 pieces/pack) is not used in each cycle, and the amount of blood on each piece is very small, just wetting the surface, it means that the menstrual flow is light.

2. What is the reason for scanty menstrual flow?

Some women have very little menstrual flow since menarche, which may be caused by incomplete uterine development. A sudden decrease in normal menstrual flow may be caused by abnormal hormone secretion or anovulatory menstruation.

3. The reasons for scanty menstruation mainly include the following three aspects:

1. Uterine hypoplasia. Menstruation is the shedding and bleeding of the endometrium that accompanies changes in the ovarian cycle. If the uterus is underdeveloped, such as a very small or deformed uterus, only a small amount of endometrium will be shed in each physiological cycle, resulting in less menstrual flow. In addition, endometrial lesions caused by endometrial tuberculosis or damage to the endometrium due to curettage or other procedures can also result in scanty menstruation or even amenorrhea.

2. Abnormal hormone secretion. Estrogen can stimulate the proliferation of the female endometrium. If the hormone secretion in the body is abnormal, the proliferation of the endometrium will not reach the required thickness, resulting in less menstrual flow. Excessive dieting, irregular work and rest, bad mood, reproductive system diseases, etc. will affect the female endocrine environment, leading to abnormal hormone secretion and low menstrual volume.

3. Anovulatory menstruation. Women who do not ovulate can also have menstruation, which is medically called "anovulatory menstruation." This is different from normal menstruation and falls into the category of "functional uterine bleeding". This type of menstruation is characterized by irregular timing and very little blood flow.

4. Symptoms of scanty menstruation

The symptoms of oligomenorrhea mainly include that the menstrual cycle and menstrual period of women are basically normal, but the menstrual volume is significantly reduced, with each menstrual volume being less than 20ml, or even as little as a drop. Menstruation lasting less than two days is also a sign of low menstrual flow, and in severe cases it may develop into amenorrhea. In traditional Chinese medicine, scanty menstruation is divided into four types: blood deficiency type, kidney deficiency type, blood stasis type, and phlegm-dampness type, based on the color, quality, presence or absence of abdominal pain and accompanying symptoms of menstruation.

1. Blood deficiency type: Menstrual blood is lighter in color and contains no blood clots. During menstruation, women experience symptoms such as dizziness, palpitations, weakness, yellow complexion, and a feeling of emptiness in the lower abdomen. The color of the tongue is lighter than that of normal people, and the pulse is thin and weak.

2. Kidney deficiency type: Menstrual blood is light red or even dark red, and thin in texture. Menstruation is accompanied by symptoms such as sore waist and weak knees, heel pain, dizziness, tinnitus, frequent urination at night, etc. The color of the tongue is darker than that of normal people, and the pulse is weak or slow.

3. Blood stasis type: Menstrual blood is purple-black in color and contains blood clots, often accompanied by lower abdominal distension and pain. The abdominal pain symptoms will be relieved after the blood clots are discharged. The tongue is dark purple in color or has small bruises, and the pulse is thin and astringent or stringy and astringent.

4. Phlegm-dampness type: Menstrual blood is light red in color and thick like phlegm. It is more common in obese women and is often accompanied by symptoms of chest tightness and nausea. The tongue is light red with tooth marks on the edge of the tongue, the tongue coating is white and greasy, and the pulse is slippery.