Superficial gastritis is not a pre-cancerous condition and is not usually cancerous, the chances of it becoming cancerous are the same as in a normal person, so there is no such thing as how long does it take for superficial gastritis to become cancerous. When there is superficial gastritis, it is necessary to see whether the patient has symptoms, which are relatively common and in most cases have no symptoms. If the patient has stomach acid, stomach distension, stomach pain and other symptoms, it means that there is excessive secretion of gastric acid, need to use drugs to inhibit gastric acid, promote gastric power to regulate, clinically commonly used omeprazole plus rehabilitation of new liquid treatment, the course of treatment is usually in about three weeks. In addition, with superficial gastritis, diet needs attention, eat less spicy, fried and other stimulating food, abstain from alcohol.