Duodenal ulcer can not review gastroscopy. Duodenal ulcer to do gastroscopy review is not very strict time, this and the patient’s own situation has a lot to do with, when the patient’s condition is mild, their own recovery is good, can not review gastroscopy. The general treatment cycle for duodenal ulcer patients is about 4 to 6 weeks, and if there is Helicobacter pylori infection, Helicobacter pylori eradication treatment is needed. When duodenal ulcer patients in the medication after 2 to 3 months of symptomatic relief is not ideal, you can consider changing the drug or add other drugs for treatment, recovery is not ideal patients relative to other patients are more likely to recur can be gastroscopy review when necessary. Therefore, the time of gastroscopy review, and the patient’s own actual situation has a lot to do, it is recommended that the patient according to their own situation to determine.