<unk>  is an inflammation (irritation and swelling) of the lining of the stomach.
There are two types of<unk> :
Acute<unk> : a sudden inflammation of the lining of the stomach.
Chronic<unk> : inflammation of the lining of the stomach that persists for a long time.
Gastritis
Iritis
Gingivitis
Stomatitis
Papillitis
Dyspepsia
Peptic ulcer
Rhinitis