Stomach Ulcers

A peptic ulcer, also known as PUD or peptic ulcer disease, is the most common ulcer of an area of the gastrointestinal tract that is usually acidic and thus extremely painful. It is defined as mucosal erosions equal to or greater than 0.5 cm. As many as 70–90% of such ulcers are associated with Helicobacter pylori, a spiral-shaped bacterium that lives in the acidic environment of the stomach; however, only 40% of those cases go to a doctor. Ulcers can also be caused or worsened by drugs such as aspirin, ibuprofen, and other NSAIDs.

Four times as many peptic ulcers arise in the duodenum—the first part of the small intestine, just after the stomach—as in the stomach itself. About 4% of stomach ulcers are caused by a malignant tumor, so multiple biopsies are needed to exclude cancer. Duodenal ulcers are generally benign.

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

Bug guts shed light on Central America Chagas disease

In Central America, Chagas disease, or American trypanosomiasis, is spread by the "kissing bug" Triatoma dimidiata. By collecting DNA from the guts of these bugs, researchers reporting in PLOS Neglected Tropical Diseases ...

Mutant cells colonize our tissues over our lifetime

By the time we reach middle age, more than half of the oesophagus in healthy people has been taken over by cells carrying mutations in cancer genes, scientists have uncovered. By studying normal oesophagus tissue, scientists ...

A new mechanism in the control of inflammation

After infection or tissue injury, the inflammatory immune response attacks the infection and repairs the damaged tissue. However, sometimes excess inflammation can have the opposite effect, increasing injury in a process ...

Study pinpoints what makes human neurons unique

Human neurons are much larger than those of model organisms mice and rats, so it's been unclear whether it's size that makes a difference in our brain's computational power. Now, in a study appearing October 18 in the journal ...