Chong, Ren, Du, and Dai are the four main meridians of the eight extraordinary meridians, and their main function is to strengthen the connection between the twelve main meridians. Predecessors have pointed out: "The main meridians (i.e., the twelve main meridians) are like rivers, and the odd meridians (i.e., the eight extra meridians) are like lakes." The twelve regular meridians are directly connected to the internal organs, while the eight extraordinary meridians are not directly connected to the internal organs. They must pass through the regular meridians to be indirectly connected to the internal organs. Therefore, its physiological activity function can reflect the activity process of the regular meridians and the activity functions of the internal organs; conversely, if the abnormal activity of the extra meridian itself is abnormal, it can also directly or indirectly affect the functional activities of the regular meridians and internal organs. Only the close cooperation between the extra-ordinary meridians and the regular meridians can complete the movement of qi and blood, connect the internal organs, regulate yin and yang, communicate with the inside and outside of the human body, and complete the reproductive and physiological functions of women. (1) Chongmai: "Chong" means key point. The Chongmai circulates in the important parts of the human body and leads the Qi and blood of the meridians. It is the key point for the movement of Qi and blood in the meridians, so it is called Chongmai. The Chongmai originates from the center of the cell and exits the perineum. It is divided into three branches: anterior, posterior and inferior. The anterior pulse leaves the perineum, passes through the yin organ, emerges from the Qi Street (i.e., the Qi Chong point), travels horizontally to the Zhongji and Guanyuan points, merges with the Ren vessel, opens outward five minutes from the front midline, and merges with the Ren vessel. It enters the Foot Shaoyin Kidney Meridian and ascends, passes through the diaphragm, reaches the throat, and surrounds the lips. The posterior meridian passes through the perineum, around the anus, and in the spine, leads to the Du meridian, and goes up along the spine. The descending vein goes down from the Qijie point, along the inner side of the thigh, to the big toe. Chong governs menstrual water. Menstrual water originates from blood, and blood is metabolized by the spleen and stomach. Therefore, the ancients believed that "Chong meridians are affiliated with Yangming" and are called the "sea of ??the twelve meridians", also known as the "sea of ??blood". The Chongmai is supported by the innate kidney qi and nourished by the acquired water and grain essence. All the essences and qi from the past and acquired days converge in the Chongmai, which plays an important role in maintaining women's special physiology. When a woman is around 14 years old, her kidney energy becomes strong, and Tiangui reaches the Chong mei, causing it to gather blood from the internal organs and fill the Chong mei, which is the source of menstruation. Women are based on blood, and menstruation is based on blood. If the Ren channel is unobstructed and the Chong channel is strong, menstruation can come and go. "Jingyue Quanshu Women's Rules" says: "The meridians are based on yin blood, so how can the internal organs not have it? However, the blood from the internal organs all returns to the Chong vessel, and the blood rushes into the sea of ??blood of the five internal organs and six internal organs. Therefore, the classics say that if the Tai Chong vessel is strong, the moon will Nowadays, it can be seen that Chong Mai is the root of menstruation. (2) Ren Mai: "Ren" means pregnancy, nourishment and responsibility. Ren Mai is responsible for the yin meridian of the human body. It plays the role of nurturing the fetus, so it is called "Ren meridian". It originates from the cell, goes out from the perineum, passes through the vagina, and goes up along the midline of the abdomen, to the throat, up to Chengjian point, and bypasses the lips. , divided into two branches, ascending, along the face, up to the eye. The so-called Ren meridian is the "sea of ??yin meridians" because the Ren meridian is particularly closely related to the Spleen Meridian of Foot Taiyin, the Liver Meridian of Foot Jueyin and the Kidney Meridian of Foot Shaoyin. , these three meridians intersect with the Ren meridian at three acupoints: Qugu, Zhongji, and Guanyuan. The spleen is the foundation of acquired nature and the source of Qi and blood biochemistry. It governs blood and transports essence. The liver stores blood and regulates drainage. The body uses yin and utilizes yang. The ancients once said that "women have the liver as their innate". Although it is impossible for a woman to have two innates, the liver does have the real innate foundation in women's life, especially in the young and middle-aged stage. The kidneys are the foundation of innateness, the source of life, and the organ that stores essence and energy. These three yin organs play a particularly important role and position in a woman's life. They all have the functions of biochemistry, regulating essence and energy. The different characteristics of Qi and blood reflect the active functions through the meridians, and intersect with the Ren meridians, and act on the uterus through the Ren meridians. Therefore, "Ren mei Tong" can be expressed as "menstrual events occur at the moment". Diseases of the spleen and kidneys can react to the uterus through the Ren channel, causing menstrual disease or other gynecological diseases. (3) Du channel: "Du" means general tube, and the Du channel and the six yang meridians of the hands and feet. It intersects and leads all the Yang meridians. It is a sea of ??Yang meridians and connects to the kidneys. It has the function of regulating the Qi and blood of all the Yang meridians throughout the body. The Du Vessel starts from the cell, goes down to the Yin organ, reaches the perineum, and passes through the end of the coccyx. The Changqiang point goes up along the middle of the spine to Fengfu point on the neck, enters the brain, goes up from the neck to Baihui point on the top of the head, then goes down along the forehead to the root of the nose, goes down along the nose, and passes through the Renzhong point. It enters the inside and ends at the Gujiao point, and branches out through the kidneys and the heart, which can maintain the vitality of the body. The Du meridian and the Ren meridian are one yang and one yin, one running in front of the body and the other running in the back. It originates from the same source and intersects with the gingiva. Its meridian Qi circulates back and forth to maintain the balance of yin and yang pulses and regulate the regular tide of menstruation. (4) Dai pulse: What makes Dai pulse different from other meridians is its circulation path. It does not flow up and down, but wraps around the waist, just like a ring around the body. Since the meridians circulate around the waist, all the meridians that circulate up and down the body must pass through this meridians and be bound by it. Therefore, the belt pulse can bundle all the meridians, especially those below the waist. Only by being supported by this pulse can they maintain their normal physiological functions. "The Eight Qi Meridians Examination of the Belt Pulse" says: "The belt pulse originates from the body. The Zhangmen point on Jueyin of the Jijie foot is the same as the Daimai point on the foot Shaoyang, and it surrounds the whole body, like a belt." The Zhangmen point belongs to the liver meridian, and the Daimai point belongs to the gallbladder meridian. It can be seen that the Daimai and liver and gallbladder meridians The relationship is very close. Because the belt pulse passes through the waist, the waist belongs to the foot-shaoyin kidney meridian, and the belt pulse is also closely related to the kidneys. Furthermore, the belt pulse always binds the meridians below the waist, and the lower burner is where the extra meridians gather. "The three meridians of Chong, Ren, and Du have the same origin but have three different courses. They all have one source but three divergences, and they are all collaterals and Daimai." (Confucianism in Confucianism), which shows that there are more differences between Daimai and Chong, Ren, and Du meridians. Inseparable and close ties. If the restraint and regulating functions of the meridians are normal, the circulation of Qi and blood in the meridians can maintain its normal state, and menstruation can flow regularly.