BACK TOTOP Browse A-ZSearchBrowse A-ZABCDEFGHIJKLMNOPQRSTUVWXYZ0-9 E-mail FormEmail ResultsName:Email address:Recipients Name:Recipients address:Message: Print-FriendlyBookmarksbookmarks-menuBacterial gastroenteritisInfectious diarrhea - bacterial gastroenteritis; Acute gastroenteritis; Gastroenteritis - bacterialBacterial gastroenteritis occurs when there is an infection of your stomach and intestines. This is due to bacteria. Causes Bacterial gastroenteritis can affect one person or a group of people who all ate the same food. It is commonly called food poisoning. It often occurs after eating at picnics, school cafeterias, large social gatherings, or restaurants.Your food may get infected in many ways:Meat or poultry may come into contact with bacteria when the animal is processed. Water that is used during growing or shipping may contain animal or human waste. Improper food handling or preparation may occur in grocery stores, restaurants, or homes.Food poisoning often occurs from eating or drinking:Food prepared by someone who did not wash their hands properly Food prepared using unclean cooking utensils, cutting boards, or other tools Dairy products or food containing mayonnaise (such as coleslaw or potato salad) that have been out of the refrigerator too long Frozen or refrigerated foods that are not stored at the proper temperature or are not reheated properly Raw shellfish such as oysters or clams Raw fruits or vegetables that have not been washed well Raw vegetable or fruit juices and dairy products (look for the word "pasteurized" to make sure the food is safe to eat or drink) Undercooked meats or eggs Water from a well or stream, or city or town water that has not been treatedMany different types of bacteria can cause bacterial gastroenteritis, including:Campylobacter jejuni Campylobacter jejuniCampylobacter infection occurs in the small intestine from bacteria called Campylobacter jejuni. It is a type of food poisoning.ImageRead Article Now Book Mark Article E coli E coliE coli enteritis is swelling (inflammation) of the small intestine from Escherichia coli (E coli) bacteria. It is the most common cause of travelers...ImageRead Article Now Book Mark Article Salmonella SalmonellaSalmonella enterocolitis is a bacterial infection in the lining of the small intestine that is caused by Salmonella bacteria. It is a type of food p...ImageRead Article Now Book Mark Article Shigella ShigellaShigellosis is a bacterial infection of the lining of the intestines. It is caused by a group of bacteria called Shigella.ImageRead Article Now Book Mark Article Staphylococcus Yersinia Symptoms Symptoms depend on the type of bacteria that caused the sickness. All types of food poisoning cause diarrhea. Other symptoms include:Abdominal cramps Abdominal crampsAbdominal pain is pain that you feel anywhere between your chest and groin. This is often referred to as the stomach region or belly.ImageRead Article Now Book Mark Article Abdominal pain Bloody stools Bloody stoolsBlack or tarry stools with a foul smell are a sign of a problem in the upper digestive tract. It most often indicates that there is bleeding in the ...Read Article Now Book Mark Article Loss of appetite Loss of appetiteA decreased appetite is when your desire to eat is reduced. The medical term for a loss of appetite is anorexia.Read Article Now Book Mark Article Nausea and vomiting NauseaNausea is feeling an urge to vomit. It is often called "being sick to your stomach. "Vomiting or throwing-up is forcing the contents of the stomach ...ImageRead Article Now Book Mark Article Fever Exams and Tests Your health care provider will examine you for signs of food poisoning. These may include pain in the stomach and signs your body does not have as much water and fluids as it should (dehydration).Lab tests may be done on the food or a stool sample to find out what germ is causing your symptoms. However, these tests do not always show the cause of the diarrhea.Tests may also be done to look for white blood cells in the stool. This is a sign of infection. Treatment You will most likely recover from the most common types of bacterial gastroenteritis in a couple of days. The goal is to make you feel better and avoid dehydration.Drinking enough fluids and learning what to eat will help ease symptoms. You may need to:Manage the diarrhea Manage the diarrheaDiarrhea is the passage of loose or watery stool. For some, diarrhea is mild and will go away within a few days. For others, it may last longer. I...Read Article Now Book Mark Article Control nausea and vomiting Control nausea and vomitingHaving nausea (being sick to your stomach) and vomiting (throwing up) can be very difficult to go through. Use the information below to help you mana...Read Article Now Book Mark Article Get plenty of restIf you have diarrhea and are unable to drink or keep down fluids because of nausea or vomiting, you may need fluids through a vein (IV). Young children may be at extra risk of getting dehydrated.If you take diuretics ("water pills"), or ACE inhibitors for high blood pressure, talk to your provider. You may need to stop taking these medicines while you have diarrhea. Never stop or change your medicines without first talking to your provider.Antibiotics are not given very often for most common types of bacterial gastroenteritis. If diarrhea is very severe or you have a weak immune system, antibiotics may be needed.You can buy medicines at the drugstore that can help stop or slow diarrhea. Do not use these medicines without talking to your provider if you have:Bloody diarrhea Severe diarrhea Fever Do not give these medicines to children. Outlook (Prognosis) Most people get better in a few days without treatment.Certain rare types of E coli can cause:Severe anemia AnemiaAnemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues. Different type...ImageRead Article Now Book Mark Article Gastrointestinal bleeding Kidney failure When to Contact a Medical Professional Contact your provider if you have:Blood or pus in your stools, or your stool is black Diarrhea with a fever above 101°F (38.33°C) or 100.4°F (38°C) in children Recently traveled to a foreign country and developed diarrhea Stomach pain that does not go away after a bowel movement Symptoms of dehydration (thirst, dizziness, lightheadedness)Also contact your provider if:The diarrhea gets worse or does not get better in 2 days for an infant or child, or 5 days for adults A child over 3 months old has been vomiting for more than 12 hours; in younger babies, call as soon as vomiting or diarrhea begins Prevention Take precautions to prevent food poisoning.Open ReferencesReferencesKotloff KL. Acute gastroenteritis in children. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 366.Nguyen T, Akhtar S. Gastroenteritis. In: Walls RM, Hockberger RS, Gausche-Hill M, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, PA: Elsevier; 2018:chap 84.Schiller LR, Sellin JH. Diarrhea. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease: Pathophysiology/Diagnosis/Management. 11th ed. Philadelphia, PA: Elsevier; 2021:chap 16.Wong KK, Griffin PM. Foodborne disease. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 9th ed. Philadelphia, PA: Elsevier; 2020:chap 101.AllVideoImagesTogDigestive system - illustration The esophagus, stomach, large and small intestine, aided by the liver, gallbladder and pancreas convert the nutritive components of food into energy and break down the non-nutritive components into waste to be excreted.Digestive systemillustrationDigestive system organs - illustration The digestive system organs in the abdominal cavity include the liver, gallbladder, stomach, small intestine and large intestine.Digestive system organsillustrationDigestive system - illustration The esophagus, stomach, large and small intestine, aided by the liver, gallbladder and pancreas convert the nutritive components of food into energy and break down the non-nutritive components into waste to be excreted.Digestive systemillustrationDigestive system organs - illustration The digestive system organs in the abdominal cavity include the liver, gallbladder, stomach, small intestine and large intestine.Digestive system organsillustrationRelated Information Toxins(Special Topic)Food poisoning(Condition)Viral gastroenteritis (stomach flu)(Condition)Diarrhea(Symptoms)Colitis(Condition)Salmonella enterocolitis(Condition)Shigellosis(Condition)Campylobacter infection(Condition)Systemic(Special Topic)Diarrhea - what to ask your health care provider - adult(Doctor Questions)Diarrhea - what to ask your doctor - child (Doctor Questions)When you have nausea and vomiting(Self-Care) Review Date: 10/25/2021 Reviewed By: Michael M. Phillips, MD, Emeritus Professor of Medicine, The George Washington University School of Medicine, Washington, DC. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- © 1997- All rights reserved. A.D.A.M. content is best viewed in IE9 or above, Firefox and Google Chrome browser.Content is best viewed in IE9 or above, Firefox and Google Chrome browser.