Question

which bacterium causes peptic ulcers ?

Answer 1

Peptic ulcer disease (PUD) is a break in the lining of the stomach, first part of the small intestine or occasionally the lower esophagus.[1][7] An ulcer in the stomach is known as a gastric ulcer while that in the first part of the intestines is known as a duodenal ulcer.[1] The most common symptoms of a duodenal ulcer are waking at night with upper abdominal pain or upper abdominal pain that improves with eating.[1] With a gastric ulcer the pain may worsen with eating.[8] The pain is often described as a burning or dull ache.[1]Other symptoms include belching, vomiting, weight loss, or poor appetite.[1] About a third of older people have no symptoms.[1]Complications may include bleeding, perforation and blockage of the stomach.[2]Bleeding occurs in as many as 15% of people.[2]