The most common viruses that can cause diarrhea and other gastrointestinal symptoms in children are rotaviruses, noroviruses, and adenoviruses. Outbreaks are common in schools and daycare centers, especially during the winter months.
Viral gastroenteritis (also commonly known as the stomach flu) typically causes nausea, vomiting, and diarrhea lasting for a few days. Fevers are also common.
Foodborne Illness
Food poisoning is another common culprit of diarrhea, lasting for around 24 hours after the consumption of a tainted food product. Vomiting, chills, and nausea can occur with food poisoning as well.
Some of the most common types of bacteria behind food poisoning include E. coli, Salmonella, and Campylobacter.
Parasites
In other cases, the cause of your child’s diarrhea could be an infection of parasites such as giardiasis or cryptosporidiosis. Parasites can be highly contagious and spread rapidly in facilities like daycares and preschools, as well as community swimming areas like pools and lakes.
Parasitic infections typically clear up within a week with proper medication but may turn chronic and require further treatment. Symptoms such as nausea, fever, and loss of appetite may occur alongside diarrhea.
Food Allergies and Intolerances
Milk allergy and lactose intolerance are some of the most common causes of diarrhea in young children. Gluten is another common culprit, with reactions ranging from full-blown Celiac disease to a mild gluten sensitivity.
When in doubt, try an elimination diet and see if that clears up your child’s symptoms. An allergist can also help determine if food allergies might be the cause of your child’s tummy troubles.
Chronic Diarrhea
Chronic diarrhea can be a cause for concern and a symptom of a larger problem. It may also cause malabsorption and even lead to dehydration. Chronic diarrhea could be a lingering effect from a prior illness, or it may point to a GI disorder such as IBS.
In some cases, your child’s do