Diarrhea: Causes, Symptoms, and When to See a Doctor

 What is Diarrhea?


Diarrhea is when you pass loose, watery stools more than three times a day. It’s usually short-lived, but in some cases, it can be a sign of something more serious.

Common Causes of Diarrhea

Diarrhea can happen for many reasons, including:

  • Infections: Viruses (like norovirus or rotavirus), bacteria (like E. coli, Salmonella), or parasites.

  • Food poisoning: Eating contaminated food or water.

  • Medications: Antibiotics and certain cancer drugs can disrupt your gut.

  • Food intolerances: Lactose or gluten intolerance.

  • Digestive disorders: Conditions like Irritable Bowel Syndrome (IBS), Crohn’s disease, or ulcerative colitis.

  • Stress and anxiety: Can trigger bowel changes in some people.

Symptoms of Diarrhea

  • Loose or watery stools

  • Frequent bowel movements

  • Stomach cramps or pain

  • Bloating

  • Nausea

  • Urgency to use the bathroom

  • Sometimes, fever or blood in the stool (see below)

Is Diarrhea Dangerous?

Most cases of diarrhea clear up within a few days. However, it can become serious, especially if it leads to dehydration.

Signs of dehydration include:

  • Dry mouth

  • Little or no urine

  • Dizziness or weakness

  • Dark yellow urine

How to Treat Diarrhea at Home

✅ Stay Hydrated
Drink water, oral rehydration salts (ORS), or electrolyte-rich drinks like coconut water or sports drinks.

✅ Eat a BRAT Diet (if needed)
Bananas, Rice, Applesauce, and Toast – these are gentle on the stomach.

✅ Avoid spicy, greasy, and dairy foods temporarily.

✅ Probiotics
These “good bacteria” may help shorten the duration, especially after antibiotic use.

When to See a Doctor

Seek medical help if you have:

  • Diarrhea lasting more than 2–3 days

  • Severe abdominal pain

  • Fever over 102°F (39°C)

  • Blood or pus in stool

  • Signs of dehydration

  • If it occurs in infants, elderly, or people with weak immune systems

Preventing Diarrhea

  • Wash hands regularly

  • Drink clean, safe water

  • Avoid raw or undercooked foods

  • Be cautious when traveling (bottled water, cooked food only)

Final Thoughts

While diarrhea is common and usually mild, it shouldn’t be ignored—especially if symptoms are severe or prolonged. Staying hydrated and listening to your body are key. And remember: when in doubt, talk to a healthcare provider.

💡 Wanna know about IBS vs. IBD: What’s the Difference and Why It Matters for Your Gut Health

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