Duodenitis - inflammatory diseases of a duodenum. Meet often, mainly at men. Distinguish duodenitises acute and chronic, widespread and limited (mainly a bulb of a duodenum).

The acute duodenitis usually proceeds in a combination to an acute inflammation of a stomach and an intestine as an acute gastroenteritis, a gastroenterocolitis; happens catarral, эрозивно-ulcer and phlegmonous.

Etiology, pathogenesis. Play a role alimentary toxinfections, poisonings with the toxic substances possessing irritating action on a mucosa of a digestive tube, excessive reception very much a spicy food usually in a combination to a lot of strong alcoholic drinks, damages of a mucosa of a duodenum by alien bodies.