Duodenal bulbar inflammation may produce symptoms such as abdominal pain and bloating, affecting the diet, etc. Aggressive treatment usually does not cause serious harm. If left untreated, serious complications such as bleeding, pyloric obstruction, and perforated duodenal ulcers may occur. Duodenal bulbitis is usually caused by Helicobacter pylori infection, bile reflux, gastric acid stimulation and other factors that lead to inflammatory reaction of the mucosa of the duodenal bulb, which may cause abdominal pain, abdominal distension and other uncomfortable symptoms, affecting the diet and so on, and timely treatment will not have serious harm. If the treatment is not timely or the treatment method is not appropriate, duodenal bulbar inflammation is usually in the active stage, the damaged mucosa will have a small amount of bleeding, do routine fecal examination, there may be positive occult blood. Inflammation in the duodenal bulb is likely to cause pyloric obstruction. If left untreated, the inflammation worsens and a perforated duodenal ulcer may occur. If duodenal bulbitis occurs, it should be treated in time, so as not to aggravate the condition and jeopardize health. At the same time, we should pay attention to a light diet and avoid alcohol and other stimulating foods.