(a) Bleeding manifested as vomiting blood and black stool, except for those who vomit blood, generally do not fast. Cold rice soup, cold milk and other warm and cool liquid food can be given to neutralize gastric acid and inhibit gastric starvation contraction, which is beneficial to hemostasis. (B) pyloric obstruction When food is obstructed through the pylorus, nausea, vomiting, pain and other symptoms can occur. Therefore, in the early stage of pyloric obstruction after gastrointestinal decompression treatment has improved, or incomplete obstruction can be into the clear liquid, where there are crumbs and milk and other gas-producing fluids are not allowed to eat. After the obstruction is relieved, the quality and quantity of food can be gradually adjusted, and complete obstruction should be fasted. (C) acute perforation acute perforation is a serious complication of ulcer disease, at this time should be fasted. Regarding the diet for the treatment of peptic ulcer, there have been changes in recent years. Milk was used as a basic food in Xiabi’s diet for ulcer disease with a high daily amount. In recent years, it has been found that consuming too much milk has a greater effect on stimulating gastric acid secretion than neutralizing it; at the same time, some people cannot tolerate milk; therefore, it is advocated that milk should be used in moderate amounts and need not be used in large amounts for a long time. Previously, it was emphasized that ulcer disease should be long-term, or even lifelong, milder diet without mechanical and chemical stimulation; at present, the diet supply is a small number of meals during the active period of ulcer, choosing soft and easily digestible food, and 3 meals a day after the condition is stabilized, and normal general food can be given to ensure the balance of various nutrients.