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irritable bowel syndrome

IBS (Irritable Bowel Syndrome) – Causes, Symptoms, Types, and Treatment

By Dr. Karan R Rawat

Introduction

Irritable Bowel Syndrome (IBS) is a common gastrointestinal disorder affecting millions worldwide. It primarily impacts the large intestine, causing discomfort, bloating, and irregular bowel habits. While IBS doesn’t damage the digestive tract, it can significantly affect one’s quality of life. In this blog, we’ll explore the causes, symptoms, types, and treatment options for IBS to help you manage this condition effectively.

What is IBS?

IBS is a functional digestive disorder, meaning it affects how the gut works without causing visible structural damage. It is characterized by a group of symptoms that occur together, including abdominal pain, bloating, and altered bowel movements (diarrhea, constipation, or both).

Causes of IBS

The exact cause of IBS is unknown, but several factors contribute to its development:

  1. Gut-Brain Axis Dysfunction – Miscommunication between the brain and intestines can lead to abnormal muscle contractions in the gut.

  2. Gut Microbiome Imbalance – An overgrowth of harmful bacteria or changes in gut flora may trigger IBS symptoms.

  3. Food Sensitivities – Certain foods (dairy, gluten, fatty foods) can worsen IBS.

  4. Stress & Anxiety – Emotional stress can exacerbate IBS symptoms due to the gut-brain connection.

  5. Intestinal Infections – Post-infectious IBS can develop after a severe stomach infection (gastroenteritis).

  6. Hormonal Changes – Women are more likely to develop IBS, suggesting hormonal fluctuations play a role.

Symptoms of IBS

Common IBS symptoms include:

  • Abdominal pain or cramping (often relieved after bowel movements)

  • Bloating and gas

  • Diarrhea (IBS-D) or constipation (IBS-C) or alternating between both (IBS-M)

  • Mucus in stool

  • Feeling of incomplete bowel movement

Types of IBS

IBS is classified based on predominant bowel habits:

  1. IBS-D (Diarrhea-Predominant) – Frequent loose stools and urgency.

  2. IBS-C (Constipation-Predominant) – Hard, lumpy stools and infrequent bowel movements.

  3. IBS-M (Mixed Type) – Alternating diarrhea and constipation.

  4. IBS-U (Unclassified) – Symptoms do not fit into the above categories.

Diagnosis of IBS

There is no specific test for IBS. Diagnosis is based on:

  • Rome IV Criteria – Recurrent abdominal pain at least 1 day/week for 3 months, along with changes in stool frequency or form.

  • Medical History & Physical Exam – To rule out other conditions like celiac disease or IBD.

  • Blood Tests, Stool Tests, or Colonoscopy – To exclude infections, inflammation, or other digestive disorders.

Treatment for IBS

While there’s no cure for IBS, symptoms can be managed effectively with:

1. Dietary Changes (Low-FODMAP Diet)

  • Avoid fermentable carbs (FODMAPs) found in onions, garlic, beans, and certain fruits.

  • Increase fiber (for IBS-C) or reduce fiber (for IBS-D).

  • Stay hydrated and eat smaller, frequent meals.

2. Medications

  • Antispasmodics (Dicyclomine) – Reduce abdominal cramping.

  • Laxatives (for IBS-C) – Polyethylene glycol or fiber supplements.

  • Anti-diarrheals (for IBS-D) – Loperamide to slow bowel movements.

  • Probiotics – Improve gut bacteria balance.

  • Antidepressants (Low Dose) – Help with pain and gut-brain signaling.

3. Stress Management

  • Yoga, meditation, and deep breathing can reduce stress-induced flare-ups.

  • Cognitive Behavioral Therapy (CBT) helps manage anxiety-related IBS.

4. Lifestyle Modifications

  • Regular exercise improves digestion and reduces stress.

  • Adequate sleep regulates gut function.

When to See a Doctor?

Consult Dr. Karan R Rawat or a gastroenterologist if you experience:

  • Unexplained weight loss

  • Blood in stool

  • Severe pain at night

  • Persistent diarrhea or constipation

Conclusion

IBS is a manageable condition with the right diet, medications, and lifestyle changes. If you suspect IBS, seek medical advice for a proper diagnosis and personalized treatment plan.

For expert guidance on IBS treatment in [Your Location], contact Dr. Karan R Rawat, a leading gastroenterologist specializing in digestive health.

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