Understanding Bacterial Gastroenteritis

Written by Dr. Bharat Pothuri, MD, FACG | Updated On 08-19-2025

Bacterial Gastroenteritis

Basic Houston resident guide

Bacterial gastroenteritis refers to a stomach and gut infection caused by bad bacteriophages. It causes diarrhea, cramps, and dehydration. Food may spoil quickly, which is how this disease spreads in Houston's hot summer weather. At GastroDoxs, Dr. Bharat Pothuri helps local households stay safe and feel better. This guide explains bacterial gastroenteritis, its causes, signs and symptoms, treatment, and precautions. You’ll also learn when to visit a doctor and how to manage mild cases at home.

1. What Is Bacterial Gastroenteritis?

It is an infection in the stomach or intestines. It occurs when harmful bacteria enter your digestive system. This infection causes swelling (inflammation) and stomach aches.

This differs from a viral stomach bug, according to Dr. Bharat Pothuri.

2. What Causes Bacterial Gastroenteritis?

The main causes are:

• Consumption of spoiled or raw food (like undercooked meat or eggs)
• Drinking unsafe water
• Poor handwashing after using the bathroom or handling animals
• Food prepared in unclean kitchens (especially in Houston's hot months)

Tip: Keep raw and cooked food separate when cooking.

3. Common Bacteria That Cause It

These are the usual suspects:

• Salmonella (found in raw poultry and eggs)
• E. coli (from undercooked beef or contaminated produce)
• Campylobacter (from raw meat and milk)
• Shigella (spread by dirty hands or contaminated water)
• Vibrio (from undercooked seafood or polluted water)

4. Symptoms to Watch For

You may have:

• Diarrhea (watery or bloody)
• Stomach pain or cramps
• Fever
• Nausea or vomiting
• Feeling weak or dizzy
• Signs of dehydration, like dry mouth or dark urine

In Houston's heat, dehydration can happen very quickly.

5. Viral vs. Bacterial Gastroenteritis: Key Differences

6. How to Treat It at Home

Mild cases improve on their own. Follow these steps:

• Drink fluids often—water, clear soup, or electrolyte drinks.
• Eat bland foods—start with toast, rice, applesauce, or bananas (BRAT diet).
• Rest at home and take it easy.
• Avoid greasy or spicy foods.
• Take probiotics—yogurt with live cultures or supplements can help your gut recover.

7. When to See a Doctor

Call your doctor if:

• You see blood in your stool
• You have a fever over 102°F
• Diarrhea lasts more than 7 days
• You can't keep fluids down
• You feel dizzy, faint, or very tired

Severe cases may require IV fluids or antibiotics.

8. How to Prevent Bacterial Gastroenteritis

Follow these tips, especially during Houston’s summer:

• Wash hands frequently with soap (before eating or after using the bathroom)
• Cook meat and eggs thoroughly
• Rinse fruits and vegetables well
• Avoid raw milk or juices
• Use bottled or filtered water if unsure

Pro Tip: Always carry hand sanitizer when dining out.

9. Local Tips from GastroDoxs

Want to enjoy Houston’s great food safely?

• Choose restaurants with good health ratings
• Ask for freshly cooked food
• Skip street food if it looks unsanitary
• Store leftovers in the fridge within 2 hours

10. Trusted Sources for More Info

• CDC: Food Safety
• Mayo Clinic: Gastroenteritis
• NIH

Need Help?

Book an appointment at GastroDoxs in Houston. Dr. Bharat Pothuri can help you feel better fast.

About the Author

Dr. Bharat Pothuri is a Board-Certified Gastroenterologist and Hepatologist. With extensive experience in digestive health, he specializes in advanced endoscopic procedures, chronic GI disorder management, and preventive care. Dr. Pothuri is dedicated to providing expert, patient-focused insights to help improve gut health and overall well-being.