The obstruction of food passage in the stomach is due to lesions such as ulcers or cancerous tumors. It can be divided into two main categories: incomplete obstruction and complete obstruction. Pyloric obstruction is one of the common complications of gastric and duodenal ulcers, and can occur in the recent (i.e., active) or late stage of ulcer disease. Prevention of food passage obstruction in the stomach: 1. Calcium supplementation helps prevent benign intestinal tumors: One study showed that the risk of recurrence of intestinal polyps decreased by 19-34% in those who took daily calcium supplements. Foods rich in calcium include milk and other dairy products, as well as cauliflower. In addition, vitamin D (which helps the body absorb calcium) has also been shown to reduce the risk of colorectal cancer. Fruits, vegetables and whole grains help prevent benign intestinal tumors: These foods are rich in fiber, which can reduce the risk of intestinal polyps. In addition, fruits and vegetables are also rich in antioxidants, which can prevent bowel cancer. 3. Non-smoking and alcohol consumption can prevent benign intestinal tumors: Smoking and excessive alcohol consumption can increase the risk of intestinal polyps and intestinal cancer. Women should not drink more than 150 ml of wine, or 360 ml of beer, or 40 ml of white wine per day, while men should not drink more than twice as much as women. If you have a family history of bowel cancer, it is especially important to reduce smoking and alcohol consumption to reduce the risk of developing the disease. 4. Maintain physical activity and a healthy weight: Weight control can independently reduce the risk of bowel disease. At least 30 minutes of exercise five times a week is recommended. If you can do 45 minutes of moderate intensity exercise every day, it will be more effective in reducing the risk of bowel cancer. 5. Have a good attitude to cope with stress, combine work and rest, and do not overwork: It is evident that stress is an important cause of cancer. According to Chinese medicine, stress leads to overwork and physical deficiency, thus causing a decrease in immune function, endocrine disorders, and metabolic disorders in the body, resulting in the deposition of acid in the body; stress can also lead to mental tension causing qi stagnation and blood stagnation and internal trapping of toxic fire. 6, do not eat contaminated food: such as contaminated water, crops, poultry, fish and eggs, moldy food, etc., to eat some green organic food, to prevent disease from the mouth.