Gastroenteritis, also known as the stomach flu, is a common condition that affects millions of people around the world.

It is characterized by inflammation of the stomach and intestines, leading to symptoms such as diarrhea, vomiting, abdominal pain, and dehydration. In most cases, gastroenteritis is caused by viral or bacterial infections, but it can also be the result of food poisoning or other factors. Recognizing the warning signs of gastroenteritis is crucial for early diagnosis and treatment.

In this article, we will discuss the key symptoms and red flags to watch out for.

1. Diarrhea

One of the primary symptoms of gastroenteritis is diarrhea. It is characterized by frequent, loose, and watery bowel movements. The stool may also have an unusual color or smell. In some cases, the diarrhea may be accompanied by blood or mucus.

If you experience persistent diarrhea for more than a few days, it is essential to seek medical attention as it can lead to dehydration.

2. Vomiting

Vomiting is another common warning sign of gastroenteritis. It is the body’s way of expelling the harmful substances causing the infection. The vomiting may be severe and sudden, and it may occur repeatedly.

If you are unable to keep any fluids down or if the vomiting persists for more than 24 hours, medical attention is necessary.

3. Abdominal Pain

The abdominal pain associated with gastroenteritis can range from mild discomfort to severe cramping. It is often located in the lower abdomen and may be accompanied by bloating or a feeling of fullness.

If the pain becomes severe or is accompanied by other concerning symptoms, it is important to consult a healthcare professional.

4. Dehydration

Gastroenteritis can lead to dehydration due to the loss of fluids through diarrhea and vomiting. Signs of dehydration include excessive thirst, dry mouth, dark urine, reduced urine output, fatigue, dizziness, and lightheadedness.

If you or someone you know is showing signs of dehydration, immediate medical attention is crucial, as severe dehydration can be life-threatening.

5. Fever

A fever is a common symptom of various infections, including gastroenteritis. It is the body’s natural response to fight off the infection.

If you have a high fever (above 101.5°F or 38.6°C) that persists for more than a day or is accompanied by other severe symptoms, medical intervention is necessary.

6. Nausea

Many people with gastroenteritis experience nausea, which is an uneasy sensation in the stomach that often precedes vomiting. It can be accompanied by a loss of appetite and an aversion to certain foods.

If you are unable to eat or feel nauseous for an extended period, medical advice should be sought.

7. Fatigue

Gastroenteritis can leave you feeling tired and weak due to the body’s efforts to fight off the infection. Fatigue is a common symptom and may persist even after other symptoms have subsided.

If the fatigue becomes overwhelming and interferes with daily activities, medical attention is recommended.

8. Blood in Stool

In some cases, gastroenteritis can cause blood to appear in the stool. This can be a sign of a more severe infection or damage to the gastrointestinal tract.

If you notice blood in your stool or if it persists, it is crucial to consult a healthcare professional for further evaluation and treatment.

9. Prolonged Symptoms

While gastroenteritis typically resolves within a few days without complications, some cases may have prolonged symptoms. If your symptoms persist for more than a week or worsen over time, it is essential to seek medical advice.

Prolonged gastroenteritis can indicate an underlying condition or complications that require medical intervention.

10. Signs of Dehydration in Children

In children, gastroenteritis can be especially concerning due to the risk of dehydration. Watch for signs such as a dry mouth and tongue, a lack of tears when crying, sunken eyes or cheeks, and unusual sleepiness or irritability.

If your child exhibits any of these signs, consult a healthcare professional immediately.