What is Gastritis?
{{Infobox Disease | Name = Gastritis | Image = Gastritis helicobacter - intermed mag.jpg| Caption = [[Micrograph]] showing gastritis. [[H&E stain]]. | ICD10 = {{ICD10|K|29|0|k|20}}-K29.7 | ICD9 = {{ICD9|535.0}}-535.5 | ICDO = | OMIM = | MedlinePlus = | eMedicineSubj = emerg | eMedicineTopic = 820 | eMedicine_mult = {{eMedicine2|med|852}} | MeshID = D005756 | }} '''Gastritis''' is an [[inflammation]] of the lining of the [[stomach]]. It has many possible causes.<ref>{{cite news | first= | last= | title=Gastritis | date=2002-12-01 | publisher=University of Maryland Medical System | url =http://www.umm.edu/altmed/articles/gastritis-000067.htm | work =University of Maryland Medical Center | pages = | accessdate = 2008-10-07 | language = }}</ref> The main causes are drinking too much [[Alcoholic beverage|alcohol]], or using [[nonsteroidal anti-inflammatory drugs]] (also known as NSAIDs) such as [[aspirin]] or [[ibuprofen]] for too long. Sometimes gastritis starts after major [[surgery]], serious injury, burns, or [[infection]]s. People who have had weight loss surgery may also get gastritis. Long term causes are infection with [[bacteria]], mainly ''[[Helicobacter pylori]]''. Certain diseases, such as [[pernicious anemia]], chronic [[biliary reflux|bile reflux]], stress and certain [[autoimmune disorders]] can cause gastritis as well. The most common [[symptom]] is [[abdominal pain]]. Other symptoms are [[indigestion]], abdominal bloating, [[nausea]], and [[vomit]]ing. Some may have a feeling of fullness or burning in the upper abdomen.<ref name=merckgastritis>{{cite news | first= | last= |authorlink= | title=Gastritis | date=January 2007 | publisher=Merck | url =http://www.merck.com/mmpe/sec02/ch013/ch013c.html | work = | pages = | accessdate = 2009-01-11 | language = }}</ref><ref name='NIH Publication No. 05–4764'>{{cite news | first= | last= | title=Gastritis | date=December 2004 | publisher=National Institute