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What Your Diarrhea May Be Signaling
The loose watery stools that define diarrhea can be concerning and uncomfortable. Usually, however, your case is acute and due to a minor, passing infection or something you ate or drank.
Running to the bathroom more often than usual? That could be your gut sending a warning. Diarrhea isn’t just a hassle—it can point to something deeper going on inside your body.
Whether you live in Houston’s Heights or near Galveston Bay, it helps to know the signs. In this guide from Gastrodoxs.com, we’ll explain:
What causes frequent diarrhea in adults?
When your symptoms may be serious?
When to see a doctor?
What chronic diarrhea could mean?
We’ll also share expert advice from Houston gastroenterologist
Dr. Bharat Pothuri, in a way that’s easy to understand.
1. Why Diarrhea Happens
Diarrhea means your stool is loose and watery. It’s your body’s way of flushing out something it doesn’t like.
Most cases are short-lived. But if it keeps coming back or lasts too long, pay attention.
Common Causes of Sudden (Acute) Diarrhea:
Food poisoning or stomach bugs
Medication side effects
Viral infections like norovirus
Why Some Adults Get Diarrhea Often:
High stress
Food issues (like lactose or gluten)
Ongoing gut conditions (like IBS or Crohn’s disease)
“Your gut is sensitive,” says Dr. Pothuri. “When it detects harmful bacteria, it speeds up digestion to flush things out. That’s why diarrhea can feel urgent.”
2. Acute vs. Chronic Diarrhea
Feature
Acute Diarrhea
Chronic Diarrhea
How Long
Less than 2 weeks
More than 4 weeks
Common Causes
Infections, food illness
IBS, IBD, poor nutrient uptake
Symptoms
Quick onset, cramps, fever
Ongoing, weight loss, fatigue
When to Worry
Lasts >48 hrs or fever
Doesn’t improve with care
Knowing which type you have helps decide what to do next.
3. What Causes Frequent Diarrhea in Adults
Here’s what could be behind those repeat trips to the bathroom:
Infections
Bacteria: Salmonella, E. coli
Viruses: Rotavirus, adenovirus
Parasites: Giardia
Food Sensitivities
Lactose intolerance
Gluten (Celiac disease)
Fructose malabsorption
Medications
Antibiotics (which upset gut bacteria)
Antacids with magnesium
Gut Conditions
IBS (Irritable Bowel Syndrome)
IBD (Crohn’s or Ulcerative Colitis)
Stress and Anxiety
“The brain and gut are closely connected,” says Dr. Pothuri. “Stress can speed up digestion.”
4. What Diarrhea May Be Signaling
Sometimes your stool is trying to tell you something important.
Blood or Black Stools - May mean bleeding in your gut. Get checked.
Severe Cramps or Pain - Can suggest an infection or inflammation.
Fast Weight Loss - Might mean your body isn’t absorbing nutrients.
Fever or Chills - Often a sign of infection.
Recurring Diarrhea - May point to a chronic issue like IBS.
5. When Diarrhea May Be Serious
Not all diarrhea is harmless. These signs mean you should act fast:
Fever over 102°F
Blood or pus in your stool
Sharp stomach pain
Signs of dehydration (like dizziness or dry mouth)
Diarrhea lasting more than 2 days
“Don’t ignore these signs,” says Dr. Pothuri. “They could mean something serious like ulcerative colitis or a bowel infection.”
6. When to See a Doctor
Get medical help if:
Diarrhea lasts longer than 48 hours
You have a high fever
You see blood or black stool
You’re too weak to drink fluids
You feel signs of dehydration
If you’re in Houston or nearby, visit Gastrodoxs.com to make an appointment. Getting care early helps you feel better faster.
7. Managing Diarrhea at Home
You don’t always need to rush to a clinic. Try these home tips first:
Drink Plenty of Fluids
Water, clear broth, or electrolyte drinks
Skip caffeine and alcohol
Try the BRAT Diet
Bananas, Rice, Applesauce, Toast
Easy on your gut and helps firm stools
Use Probiotics - Yogurt or supplements can restore healthy gut bacteria
Over-the-Counter Help
Loperamide (Imodium) slows stool
Pepto-Bismol eases discomfort
8. What Chronic Diarrhea Might Mean
If it lasts more than 4 weeks, it could be:
Malabsorption – Trouble absorbing nutrients
Autoimmune conditions – Like celiac disease
Chronic Infections – Parasites or bacteria
IBS – Gut sensitivity without a visible cause
“Chronic diarrhea is not normal,” says Dr. Pothuri. “We may need tests—like blood work or a colonoscopy—to find out what’s going on.”
9. How to Prevent Future Episodes
Stay ahead of the problem with these steps:
Wash hands often, especially after using public restrooms
Diarrhea might seem like a minor issue, but it can signal bigger problems. Learn the common causes, know the danger signs, and don’t wait to get care if symptoms stick around.
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.