Why are duodenal ulcers more common than gastric ulcers?

How peptic ulcers are formed:
"H. pylori weakens the protective mucous coating of the stomach and duodenum, which allows acid to get through to the sensitive lining beneath. Both the acid and the bacteria irritate the lining and cause a sore, or ulcer."

A couple of websites have stated stastics that duodenal ulcers more common than gastric ulcers but hvaen't stated why.

I don't know but my husband has them. He was hospitalized for 4 days last month cuz they were bleeding.

Because your stomach has a stronger lining which replenishes itself constantly, meant for a higher amount of acids, since it is practically constantly full of acids. The duodenum has a less strong and less replenishing lining, therefore develops ulcers when the pH balance of the fluids flowing through are too acidic.

Gastric ulcers occur more often in women than in men and duodenal ulcers occur more often in men than in women. The occurrence of gastric ulcers peaks in the 30s and duodenal ulcers tend to occur after 50.

The bolus that enters the duodenum has a higher acid load and this may be one reason why duodenal ulcers are more frequent. They are exposed to gastric acid for a longer time. There are also genetic factors that influence whether one will have a gastric or duodenal ulcer.

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