# Is gastroenteritis the same as "stomach flu"?

Canonical page: https://clinicsjo.com/en/faq/gastroenteritis-vs-stomach-flu-symptoms-treatment-dehydration-prevention
Language: en
Category: gastroenterology
Publisher: ClinicsJo
Published: 2026-09-13T08:09:51.899Z
Content updated: 2026-09-13T08:09:51.899Z
Translation (ar): https://clinicsjo.com/ar/faq/gastroenteritis-vs-stomach-flu-symptoms-treatment-dehydration-prevention

Some people call gastroenteritis "stomach flu," but this term is medically inaccurate. Gastroenteritis is an inflammation of the lining of the stomach and intestines, usually caused by viruses, or sometimes by bacteria, parasites, certain medications, or contaminated food. True influenza (the flu) is a respiratory infection that affects the nose, throat, and lungs and is caused by influenza viruses, not stomach viruses.

Viral gastroenteritis is the most common type, caused by viruses such as norovirus and rotavirus. These viruses, as well as bacteria and parasites, can spread from person to person or through the consumption of contaminated food or drinks, which is sometimes referred to as food poisoning [\[1\]](<https://clinicsjo.com/en/faq/gastroenteritis-vs-stomach-flu-symptoms-treatment-dehydration-prevention#source-S1>).

## Symptoms of Gastroenteritis

The main symptoms of gastroenteritis include vomiting and diarrhea. Other symptoms may include [\[1\]](<https://clinicsjo.com/en/faq/gastroenteritis-vs-stomach-flu-symptoms-treatment-dehydration-prevention#source-S1>):

- Abdominal pain or cramping.

- Nausea.

- Occasional fever.

This condition is usually not serious in healthy people, but it can sometimes lead to dehydration or cause severe symptoms, especially in vulnerable groups such as infants, the elderly, pregnant women, and people with compromised immune systems or other serious health conditions [\[1\]](<https://clinicsjo.com/en/faq/gastroenteritis-vs-stomach-flu-symptoms-treatment-dehydration-prevention#source-S1>).

## Treatment and Dehydration Prevention

In most cases, those with gastroenteritis recover on their own with rest and by drinking plenty of fluids and electrolytes to replace what the body has lost. This is the most important step in treatment to prevent dehydration [\[3\]](<https://clinicsjo.com/en/faq/gastroenteritis-vs-stomach-flu-symptoms-treatment-dehydration-prevention#source-S3>). A doctor may suggest taking probiotics, as some studies indicate they may help shorten the duration of diarrhea [\[1\]](<https://clinicsjo.com/en/faq/gastroenteritis-vs-stomach-flu-symptoms-treatment-dehydration-prevention#source-S1>).

For more severe symptoms, a doctor may prescribe medication to manage nausea or vomiting. For some types of bacterial or parasitic gastroenteritis, antibiotics or antiparasitic medications may be necessary, but antibiotics do not treat viral gastroenteritis [\[1\]](<https://clinicsjo.com/en/faq/gastroenteritis-vs-stomach-flu-symptoms-treatment-dehydration-prevention#source-S1>).

## When to See a Doctor

It is important to contact a healthcare provider immediately if you or your child experience any of the following warning signs, especially if you are in a high-risk group [\[1\]](<https://clinicsjo.com/en/faq/gastroenteritis-vs-stomach-flu-symptoms-treatment-dehydration-prevention#source-S1>):

### For adults:

- A change in mental state, such as irritability or lack of energy.

- Diarrhea that lasts for more than two days.

- High fever.

- Frequent vomiting.

- Six or more loose stools per day.

- Severe abdominal or rectal pain.

- Black, tarry, or bloody stools, or stools containing pus.

- Symptoms of dehydration, such as intense thirst, dry mouth, headache, dark-colored urine, and urinating less than usual.

### For infants and children:

- A change in the child's mental state, such as irritability or lack of energy.

- Diarrhea that lasts for more than one day.

- Any fever in infants, or a high fever in older children.

- Frequent loose stools.

- Frequent vomiting.

- Severe abdominal or rectal pain.

- Signs or symptoms of dehydration, such as intense thirst, dry mouth, urinating less than usual or no wet diapers for 3 hours or more, and no tears when crying.

- Black, tarry, or bloody stools, or stools containing pus.

## Prevention of Gastroenteritis

Gastroenteritis cannot always be prevented, but good hygiene can help prevent some of the infections that cause it. Preventive measures include washing hands thoroughly with soap and water, cleaning surfaces that may be contaminated with germs, and safe food preparation. Vaccines are available for infants to protect against rotavirus infection [\[1\]](<https://clinicsjo.com/en/faq/gastroenteritis-vs-stomach-flu-symptoms-treatment-dehydration-prevention#source-S1>).

For more information about symptoms, treatment, and dehydration prevention, you can visit [Gastroenteritis: Symptoms, Treatment, and Dehydration Prevention (Arabic)](<https://clinicsjo.com/ar/articles/gastroenteritis-symptoms-treatment-dehydration>).

## Medical references

- [Gastroenteritis](<https://medlineplus.gov/gastroenteritis.html>)

- [Viral Gastroenteritis (“Stomach Flu”)](<https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis>)

General health education; not a substitute for individualized clinical assessment.

Citation URL: https://clinicsjo.com/en/faq/gastroenteritis-vs-stomach-flu-symptoms-treatment-dehydration-prevention#answer
