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Diseases That Impact The Digestive System

Know about the diseases that impact the digestive system, what they are, their causes, symptoms and how to manage them.

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Written by Dr. Siri Nallapu

Reviewed by Dr. M L Ezhilarasan MBBS

Last updated on 2nd Sep, 2025

Diseases That Impact The Digestive System

Introduction 

The digestive system plays a crucial role in breaking down food, absorbing nutrients, and eliminating waste. When this system isn’t functioning properly, it can lead to discomfort, pain, and serious health issues. Many digestive disorders are common, and while some are mild, others may require medical attention.

In this article, we’ll discuss some common digestive diseases, their symptoms, causes, and ways to manage them effectively.

Consult a Gastroenterologist for Personalised Advice

Dr. Shivaraj Afzalpurkar, Gastroenterology/gi Medicine Specialist

Dr. Shivaraj Afzalpurkar

Gastroenterology/gi Medicine Specialist

13 Years • MBBS, MD General medicine (Gold medalist), DrNB (Gastroenterology), MNAMS

Bengaluru

Apollo Clinic, JP nagar, Bengaluru

1000

Dr. Santhosh Kumar, Gastroenterology/gi Medicine Specialist

Dr. Santhosh Kumar

Gastroenterology/gi Medicine Specialist

7 Years • MBBS, MD (General Medicine), DNB ( Gastroenterology)

Bengaluru

VISTA SPECIALITY CLINIC, Bengaluru

600

Dr. Vijay Kumar Rai, Gastroenterology/gi Medicine Specialist

Dr. Vijay Kumar Rai

Gastroenterology/gi Medicine Specialist

18 Years • MBBS , MD (General medicine) , DM (Gastroenterology)

Kolkata

LivGastro, Kolkata

1563

1500

Common Digestive System Diseases

1. Gastroesophageal Reflux Disease (GERD)

What is it?
•    GERD occurs when stomach acid frequently flows back into the oesophagus (the tube connecting your mouth and stomach), irritating.

Symptoms:
•    Heartburn (burning sensation in the chest)
•    Regurgitation of food or sour liquid
•    Difficulty swallowing
•    Chronic cough or sore throat

Causes:
•    Weak lower oesophageal sphincter (LES)
•    Obesity
•    Pregnancy
•    Certain foods (spicy, fatty, or acidic foods)

Management Tips:
•    Eat smaller, more frequent meals.
•    Avoid trigger foods (coffee, chocolate, citrus).
•    Elevate your head while sleeping.
•    Maintain a healthy weight.

If symptoms persist, consult a doctor for medications or further evaluation.

2. Irritable Bowel Syndrome (IBS)

What is it?
•    IBS is a chronic disorder affecting the large intestine, causing abdominal pain, bloating, and changes in bowel habits (diarrhoea, constipation, or both).

Symptoms:
•    Cramping and bloating
•    Gas
•    Diarrhoea or constipation
•    Mucus in stool

Causes:
•    Stress and anxiety
•    Food intolerances
•    Abnormal gut muscle contractions

Management Tips:
•    Identify and avoid trigger foods (dairy, gluten, beans).
•    Increase fibre intake gradually.
•    Stay hydrated.
•    Practice stress-reducing techniques (yoga, meditation).

If symptoms are severe, a doctor may recommend medications or probiotics.

3. Inflammatory Bowel Disease (IBD) – Crohn’s Disease & Ulcerative Colitis

What is it?
IBD includes chronic inflammation of the digestive tract.
•     Crohn’s Disease can affect any part of the digestive tract.
•     Ulcerative Colitis affects only the colon and rectum.

Symptoms:
•    Persistent diarrhea
•    Abdominal pain and cramping
•    Blood in stool
•    Fatigue and weight loss

Causes:
•    Immune system malfunction
•    Genetic factors
•    Environmental triggers (diet, smoking)

Management Tips:
Follow an anti-inflammatory diet (low-fat, high-fibre).
Avoid smoking and alcohol.
Take prescribed medications (steroids, immune suppressants).

Regular check-ups with a gastroenterologist are essential.

4. Peptic Ulcers

What is it?
Sores that develop on the lining of the stomach, small intestine, or oesophagus due to stomach acid erosion.

Symptoms:
•    Burning stomach pain
•    Bloating
•    Nausea
•    Dark or bloody stools

Causes:
•    H. pylori bacterial infection
•    Long-term use of NSAIDs (painkillers like ibuprofen)
•    Excessive alcohol consumption

Management Tips:
•    Avoid spicy and acidic foods.
•    Reduce stress.
•    Take prescribed antibiotics (if H. pylori is present).

If left untreated, ulcers can lead to serious complications.

5. Gallstones

What is it?
Hardened deposits in the gallbladder can block bile flow, causing pain and digestive issues.

Symptoms:
•    Sudden, intense pain in the upper right abdomen
•    Nausea and vomiting
•    Jaundice (yellowing of skin/eyes)

Causes:
•    High cholesterol in the bile
•    Obesity
•    Rapid weight loss

Management Tips:
•    Eat a low-fat, high-fibre diet.
•    Stay hydrated.
•    Surgery may be needed in severe cases.

6. Celiac Disease

What is it?
•    An autoimmune disorder where gluten (a protein in wheat, barley, and rye) damages the small intestine.

Symptoms:
•     Diarrhoea or constipation
•      Bloating and gas
•      Fatigue
•      Weight loss

Management Tips:
•    Follow a strict gluten-free diet.
•    Check food labels carefully.
•    Consult a dietitian for meal planning.

When to See a Doctor?

Seek medical help if you experience:
•    Persistent abdominal pain
•    Unexplained weight loss
•    Blood in stool
•    Severe diarrhoea or constipation

Early diagnosis and treatment can prevent complications.

Final Thoughts

Digestive diseases can significantly impact daily life, but with the right knowledge and care, many can be managed effectively. Pay attention to your body, make healthy lifestyle choices, and don’t hesitate to seek medical advice when needed.

Consult a Gastroenterologist for Personalised Advice

Dr. Shivaraj Afzalpurkar, Gastroenterology/gi Medicine Specialist

Dr. Shivaraj Afzalpurkar

Gastroenterology/gi Medicine Specialist

13 Years • MBBS, MD General medicine (Gold medalist), DrNB (Gastroenterology), MNAMS

Bengaluru

Apollo Clinic, JP nagar, Bengaluru

1000

Dr. Santhosh Kumar, Gastroenterology/gi Medicine Specialist

Dr. Santhosh Kumar

Gastroenterology/gi Medicine Specialist

7 Years • MBBS, MD (General Medicine), DNB ( Gastroenterology)

Bengaluru

VISTA SPECIALITY CLINIC, Bengaluru

600

Dr. Vijay Kumar Rai, Gastroenterology/gi Medicine Specialist

Dr. Vijay Kumar Rai

Gastroenterology/gi Medicine Specialist

18 Years • MBBS , MD (General medicine) , DM (Gastroenterology)

Kolkata

LivGastro, Kolkata

1563

1500


 

Consult a Gastroenterologist for Personalised Advice

Dr. Amit Pandita, Gastroenterology/gi Medicine Specialist

Dr. Amit Pandita

Gastroenterology/gi Medicine Specialist

10 Years • MBBS. MD (INTERNAL MEDICINE) DrNB (GASTROENTEROLOGY AND HEPATOLOGY)

Delhi

Apollo Hospitals Indraprastha, Delhi

1000

Dr Piyush Vishwakarma, Gastroenterology/gi Medicine Specialist

Dr Piyush Vishwakarma

Gastroenterology/gi Medicine Specialist

11 Years • MBBS, MD, DrNB,

Delhi

Apollo Hospitals Indraprastha, Delhi

1000

Dr. Shivaraj Afzalpurkar, Gastroenterology/gi Medicine Specialist

Dr. Shivaraj Afzalpurkar

Gastroenterology/gi Medicine Specialist

13 Years • MBBS, MD General medicine (Gold medalist), DrNB (Gastroenterology), MNAMS

Bengaluru

Apollo Clinic, JP nagar, Bengaluru

1000

Dr. Santhosh Kumar, Gastroenterology/gi Medicine Specialist

Dr. Santhosh Kumar

Gastroenterology/gi Medicine Specialist

7 Years • MBBS, MD (General Medicine), DNB ( Gastroenterology)

Bengaluru

VISTA SPECIALITY CLINIC, Bengaluru

600

Dr. Vijay Kumar Rai, Gastroenterology/gi Medicine Specialist

Dr. Vijay Kumar Rai

Gastroenterology/gi Medicine Specialist

18 Years • MBBS , MD (General medicine) , DM (Gastroenterology)

Kolkata

LivGastro, Kolkata

1563

1500

Consult a Gastroenterologist for Personalised Advice

Dr. Amit Pandita, Gastroenterology/gi Medicine Specialist

Dr. Amit Pandita

Gastroenterology/gi Medicine Specialist

10 Years • MBBS. MD (INTERNAL MEDICINE) DrNB (GASTROENTEROLOGY AND HEPATOLOGY)

Delhi

Apollo Hospitals Indraprastha, Delhi

1000

Dr Piyush Vishwakarma, Gastroenterology/gi Medicine Specialist

Dr Piyush Vishwakarma

Gastroenterology/gi Medicine Specialist

11 Years • MBBS, MD, DrNB,

Delhi

Apollo Hospitals Indraprastha, Delhi

1000

Dr. Shivaraj Afzalpurkar, Gastroenterology/gi Medicine Specialist

Dr. Shivaraj Afzalpurkar

Gastroenterology/gi Medicine Specialist

13 Years • MBBS, MD General medicine (Gold medalist), DrNB (Gastroenterology), MNAMS

Bengaluru

Apollo Clinic, JP nagar, Bengaluru

1000

Dr. Santhosh Kumar, Gastroenterology/gi Medicine Specialist

Dr. Santhosh Kumar

Gastroenterology/gi Medicine Specialist

7 Years • MBBS, MD (General Medicine), DNB ( Gastroenterology)

Bengaluru

VISTA SPECIALITY CLINIC, Bengaluru

600

Dr. Vijay Kumar Rai, Gastroenterology/gi Medicine Specialist

Dr. Vijay Kumar Rai

Gastroenterology/gi Medicine Specialist

18 Years • MBBS , MD (General medicine) , DM (Gastroenterology)

Kolkata

LivGastro, Kolkata

1563

1500

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