Duodenal ulcers are prone to recurrence when the ulcer is not treated thoroughly, such as patients with duodenal ulcers caused by Helicobacter pylori infection, which can easily lead to recurrence of the ulcer if they are not given regular treatment with a specialist to eradicate Helicobacter pylori. In addition, improper diet is also likely to cause ulcer recurrence, such as people who drink a lot of alcohol and smoke, as well as people who eat cold, spicy, irritating food, is likely to lead to ulcer recurrence. There are also certain drugs such as non-steroidal anti-inflammatory drugs that can easily lead to ulcer recurrence. Therefore, it is recommended that patients with duodenal ulcers must be treated regularly under the guidance of a specialist in order to achieve complete healing of the ulcer. After the ulcer is cured, you should pay attention to good eating habits, and quit smoking and drinking, and avoid using NSAIDs, etc.