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Irritable Bowel Syndrome Diarrhea
Irritable Bowel Syndrome with Diarrhea (IBS-D) is a chronic digestive disorder causing frequent loose stools, abdominal discomfort, and urgency. At GastroDoxs in Houston, Dr. Scott provides personalized evaluation and evidence-based treatments to help you regain control and reduce persistent symptoms.
Dr. Scott Liu, MD, is a board-certified gastroenterologist with over six years of experience and a background in military medicine. He earned his medical degree from the University of Maryland, Baltimore, completed his Internal Medicine residency at Naval Medical Center Portsmouth, and finished his Gastroenterology fellowship through the National Capital Consortium. Dr. Liu provides comprehensive care for a broad range of digestive conditions, including abdominal pain, acid reflux, liver disease, chronic diarrhea, and colon cancer screening. He is a member of the American College of Gastroenterology and is known for his disciplined, patient-focused approach and clear communication.
What Is IBS-D?
Irritable Bowel Syndrome with Diarrhea (IBS-D) is a chronic gastrointestinal disorder characterized by frequent loose or watery stools, recurrent abdominal pain, and an urgent need to use the bathroom. It affects up to 5-10% of adults in the U.S. and can interfere with daily activities and quality of life.
Common Causes and Risk Factors
Gut-brain axis dysfunction - abnormal nerve signaling between the brain and intestines
Intestinal microbiota imbalance - shifts in gut bacteria that promote diarrhea
Stress and anxiety - heightened emotional stress can trigger or worsen symptoms
Dietary triggers - dairy, caffeine, gluten, alcohol, and high-FODMAP foods
Family history - a relative with IBS increases your own risk
Signs and Symptoms
Recurrent abdominal pain or cramps relieved by a bowel movement
Loose or watery stools, often three or more times per month
Sensation of urgent need to defecate or incomplete evacuation
Excessive gas, bloating, or abdominal distension
Fatigue or sleep disturbances secondary to gastrointestinal discomfort
How Dr. Scott Diagnoses Irritable Bowel Syndrome Diarrhea?
Dr. Scott uses a step-by-step approach:
Medical History
He reviews your symptom patterns-frequency of loose stools, urgency, epigastric pain, diet, stressors, and family history of GI disorders.
Physical Exam
He performs a gentle abdominal exam, paying close attention to epigastric and lower quadrant tenderness, bloating, and signs of dehydration.
Stool Tests
These tests help rule out infections, inflammation, fat malabsorption, and parasites that can mimic IBS-D symptoms.
Blood Tests
We check for celiac disease (tTG antibodies), thyroid function, complete blood count, and inflammatory markers (CRP, ESR) to exclude alternative diagnoses.
Colonoscopy (if needed)
Reserved for patients with alarm features (weight loss, bleeding, anemia) or those over age 50, to exclude IBD, colorectal cancer, or microscopic colitis.
Treatment
Our Team offers a full range of care for Irritable Bowel Syndrome with Diarrhea (IBS-D).
1. Lifestyle and Diet Modifications
Low-FODMAP diet to reduce gas and diarrhea
Regular, smaller meals scheduled throughout the day
Stress-relief techniques such as yoga, meditation, or therapy
Soluble fiber supplements (e.g., psyllium) to bulk stools gently
2. Medications
Loperamide to manage urgent, loose stools
Rifaximin short-course antibiotic to rebalance gut flora
Eluxadoline for pain relief and diarrhea control
Bile acid binders for bile acid-related diarrhea
Low-dose antidepressants to calm gut nerves and reduce pain
3. Advanced or Additional Options
Biofeedback therapy to strengthen pelvic muscles and improve control
Access to clinical trials for innovative IBS-D treatments
Dr. Scott Liu, MD, is a board-certified gastroenterologist with over six years of experience and a background in military medicine. He earned his medical degree from the University of Maryland, Baltimore, completed his Internal Medicine residency at Naval Medical Center Portsmouth, and finished his Gastroenterology fellowship through the National Capital Consortium. Dr. Liu provides comprehensive care for a broad range of digestive conditions, including abdominal pain, acid reflux, liver disease, chronic diarrhea, and colon cancer screening. He is a member of the American College of Gastroenterology and is known for his disciplined, patient-focused approach and clear communication.
Frequently Asked Questions
What is the ICD-10 code for IBS-D?
It's K58.0, the ICD-10 code for irritable bowel syndrome with diarrhea.
What medication works best?
It depends on the person. Options include loperamide, rifaximin, or eluxadoline. Dr. Scott will help you choose the right treatment.
Are there over-the-counter options?
Yes. Loperamide (Imodium) can help control loose stools. Always check with Dr. Scott before starting any new medication.
When will I feel better?
Many people see improvement in 2 to 4 weeks. Some may need 8 to 12 weeks for full relief, depending on the treatment plan.
Is IBS-D dangerous?
IBS-D doesn't cause cancer or inflammatory bowel disease, but ongoing symptoms should always be evaluated and managed.
Do you take insurance?
Yes. We accept most Houston insurance plans. Our team can verify your coverage before your visit.
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