According to Chinese medicine, the causes of esophageal cancer are, firstly, diet, labor and weariness, and disorders of emotion and will; secondly, external influences of the six evil spirits and obscene evil. The internal and external evils can cause the disease alone or interact and cause the disease together, which eventually leads to dysfunction of internal organs, loss of harmony of qi and blood, and obstruction of meridians, resulting in qi stagnation, phlegm obstruction, blood stasis and other evils blocking the esophagus, which can cause cancer over time and block the esophagus and make it narrow. If the disease evil is not dispelled for a long time, the blood and fluid are depleted, the internal organs are not nourished and the esophagus is dry, so it is difficult to eat. According to different symptoms of esophageal cancer, TCM doctors have different prescriptions and different treatments. Phlegm and gas obstruction [Symptoms]: obstruction of swallowing, fullness or pain in the chest and diaphragm, belching or eructation, or vomiting of phlegm and food, dry mouth and throat, difficult and astringent stool, gradually losing weight, reddish tongue, yellowish greasy moss, sunken and slippery pulse. Treatment】：Opening up depression and resolving phlegm, moistening dryness and lowering Qi. Characterized by painful obstruction of swallowing, difficulty in entering solid food, difficulty in passing soup and water, gradually losing weight, dry mouth and throat, dry stools, irritable heat in the five hearts, red and dry tongue, or with cracks, and thin pulse. Treatment】Nourish fluids, drain heat and disperse knots. Internal stasis of blood [Features]: obstruction of swallowing, pain behind the sternum or under the figure, generalized vomiting of mucous phlegm, dull complexion, emaciation of the body, skin and nails are wrong, dark tongue with petechiae, greasy coating, sunken pulse. Treatment】Break up knots, resolve blood stasis, nourish Yin and nourish Blood. Qi deficiency, Yang weakness, pale complexion, mental fatigue, cold form, short breath, salivation, swollen face and feet, abdominal distension, pale tongue with white fur and weak pulse. Treatment】Enhancing Qi and nourishing Blood, warming Yang and opening knots.