Patients with gastric ulcers are generally advised to drink less tea, especially strong tea. Because tea has the effect of promoting the secretion of gastric acid. Tea is an efficient gastric acid secretion promoter tea contains theophylline, theophylline will stimulate the gastric mucous membrane cells, prompting the stomach to secrete more gastric acid. At the same time theophylline itself will also cause damage to the gastric mucosa cells. And one of the causes and pathogenesis of gastric ulcer is excessive secretion of gastric acid, mucosal defense function is reduced, which leads to gastric mucosa damage. If gastric ulcer patients drink a lot of tea, the theophylline in tea will affect ulcer healing, aggravate the disease and affect the treatment, especially strong tea, containing a large amount of theophylline, the gastric mucosa irritation and damage are very large. In addition, for patients with gastric ulcer, unreasonable drinking tea, can also produce adverse stimuli, such as drinking strong tea on an empty stomach can produce heartburn, nausea, vomiting, irritability, panic, shortness of breath, and in severe cases, fainting. This is due to the low blood sugar of the body when fasting, poor tolerance of tissues and organs, strong tea soon after absorption so that the human gastrointestinal overexcitation, cardiovascular system and plant nervous function chaos, blood pressure drop. Fasting tea can also make the gastric acid secretion hyperactivity, which stimulates the induced gastric ulcer or aggravate the degree of gastritis. Therefore, patients with gastric ulcer should avoid unreasonable tea drinking, it is best not to drink tea, especially strong tea.