The main manifestations of San Jiao blockage include cough, throat discomfort, chest tightness and abdominal distension, and lumbar and knee soreness (a feeling of soreness and weakness in the lumbar and knee regions). Chinese medicine divides the triple jiao into the upper, middle and lower jiao. The heart and lungs belong to the upper jiao, the spleen and stomach belong to the middle jiao, and the liver and kidneys belong to the lower jiao. The Upper Jiao should maintain upward force, the Middle Jiao needs to maintain the balance of qi elevation, and the Lower Jiao should maintain the smoothness of the bowels. 1. Upper Jiao is prone to shortness of breath, breath-holding, dry mouth, coughing and wheezing, heartburn and insomnia, which are manifested in various lung diseases and heart diseases. 2. Middle Jiao is mainly characterized by poor appetite, vomiting, unformed stools, acid reflux, chest tightness and abdominal distension, which can easily lead to gastric distension, gastritis, gastroesophageal reflux and other gastric diseases. 3. Lower Jiao is mainly prone to lumbar and knee weakness, yin deficiency, night sweating (sweating abnormally after going to sleep and stopping after waking up), etc. At the same time, deficiency of the liver and kidneys (weakness of the liver and kidneys) and stagnation of liver qi may lead to prostate diseases, uterine fibroids and other diseases. If you experience symptoms of San Jiao blockage, please go to a professional hospital in time to avoid delay in treatment.