Ulcer of the stomach and duodenum,also called ulcerative disease,is a sharply circumscribed loss of the tissue lining those parts of the digestive tract exposed to gastric juice containing acid and pepsin. Because its formation and development are closely related to the digestive effect of acidic gastric juice and pepsase,the disease is called peptic ulcer. It is a common disease,belonging to epigastric pain in TCM,mainly caused by cold attacking the stomach,stagnated liver-qi affecting the stomach,or spleen and stomach deficiency with deficiency and cold of the middle-jiao. Regulating qi to stop pain is the principle for its treatment. Peptic ulcer is usually differentiated as the following TCM syndromes.