Colitis

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Introduction

Colitis refers to inflammation of the inner lining of the colon, or large intestine. It can arise from various underlying causes, ranging from infections and autoimmune diseases to allergic reactions or certain medications. People suffering from colitis often experience abdominal discomfort, persistent diarrhoea, and, in some cases, bleeding.

Understanding colitis is vital for early detection, proper treatment, and management of its chronic symptoms. Timely diagnosis not only improves the quality of life but can also prevent serious complications.

What is Colitis?

Colitis is the medical term for inflammation of the colon. Depending on the cause and duration, it can be either acute or chronic. Inflammation disrupts the colon's ability to absorb water and salts, leading to symptoms such as diarrhoea and abdominal pain.

There are different forms of colitis, including ulcerative colitis, infectious colitis, ischemic colitis, microscopic colitis, and allergic colitis.

Prevalence

India

Colitis, especially ulcerative colitis and Crohn's disease (forms of Inflammatory Bowel Disease - IBD), is increasingly being diagnosed in India. A 2017 Indian Council of Medical Research (ICMR) study indicated an incidence rate of 9.31 per 100,000 people for ulcerative colitis.

Worldwide

Globally, colitis is more prevalent in developed countries, particularly in North America and Europe. According to the Crohn's and Colitis Foundation, over 3 million Americans are affected by IBD. Incidence is rising in developing countries due to urbanisation and dietary shifts.

Types of Colitis

  • Ulcerative Colitis: Chronic inflammation and ulcers in the colon and rectum.
  • Crohn's Colitis: A form of Crohn's disease affecting the colon.
  • Microscopic Colitis: Inflammation visible only under a microscope.
  • Infectious Colitis: Caused by bacterial, viral, or parasitic infections.
  • Ischemic Colitis: Due to reduced blood flow to the colon.
  • Allergic Colitis: Typically affects infants and young children due to food allergies.

Causes of Colitis

  • Autoimmune Reactions: As in ulcerative colitis and Crohn's disease.
  • Infections: From bacteria like E. coli, Salmonella, and viruses like Cytomegalovirus.
  • Reduced Blood Flow: Leading to ischemic colitis.
  • Radiation Therapy: Used for abdominal cancers.
  • Medications: NSAIDs, antibiotics, and chemotherapy agents.
  • Allergies: Especially food allergies in infants.

Symptoms of Colitis

  • Abdominal pain and cramping
  • Chronic diarrhoea, often with blood or pus
  • Urgency to defecate
  • Fatigue
  • Fever
  • Weight loss
  • Anaemia due to blood loss
  • Bloating and gas

Diagnosis of Colitis

  • Medical History and Physical Examination
  • Stool Tests: To rule out infections.
  • Blood Tests: To check for anaemia and inflammation markers.
  • Colonoscopy: Gold standard for visualising inflammation and collecting biopsy samples.
  • CT Scan or MRI: For identifying complications like abscesses or fistulas.
  • Sigmoidoscopy: For limited inflammation.

Treatment of Colitis

Medications

  • Aminosalicylates (5-ASAs): Such as mesalazine and sulfasalazine, to reduce inflammation. (Mesagran Sachet)
  • Corticosteroids: Prednisone and budesonide, used short-term to control flares. (Predon 20mg Tablet)
  • Immunomodulators: Azathioprine and 6-mercaptopurine help maintain remission.
  • Biologic Therapies: Like infliximab and adalimumab target specific immune pathways.
  • Antibiotics: For infectious colitis.
  • Anti-diarrhoeal and pain relief medications: Used cautiously.

Other Treatments

  • Surgery: In severe cases, part of the colon may need to be removed.
  • Nutritional Support: Supplements for deficiencies (iron, calcium, Vitamin D, B12).

Alternative Therapies

  • Probiotics: Help restore healthy gut bacteria.
  • Dietary Modifications: Elimination diets, low FODMAP diets.
  • Herbal Remedies: Turmeric (curcumin) has anti-inflammatory properties.
  • Mind-Body Practices: Yoga, meditation, and cognitive behavioural therapy can help reduce stress-induced flares.

Risk Factors

  • Family History of IBD
  • Autoimmune Diseases
  • Age: Most common in people aged 15 to 30 and 50 to 70.
  • Diet High in Processed Foods
  • Smoking
  • Sedentary Lifestyle

Complications

  • Colon perforation
  • Severe bleeding
  • Toxic megacolon
  • Increased risk of colon cancer
  • Malnutrition
  • Joint pain and skin problems due to systemic inflammation

Tips to Live with Colitis

  • Track Symptoms: Keep a diary to identify flare triggers.
  • Follow Medication Schedule: Don’t skip doses.
  • Work with a Dietitian: Personalise your meal plan.
  • Stay Connected: Join support groups.
  • Prioritise Mental Health: Seek therapy if anxiety or depression arises.

Common Misconceptions About This Condition

  • "It’s caused by poor diet alone" – Not always true.
  • "It’s just a stomach bug" – Colitis is more complex.
  • "You can’t live a normal life" – With management, many do.
  • "Surgery cures it permanently" – It depends on the type and severity.

When to See a Doctor

  • Persistent or bloody diarrhoea
  • Severe abdominal pain
  • Fever not improving with time
  • Unintended weight loss
  • Symptoms not responding to over-the-counter treatments

Questions to Ask Your Doctor

  • What type of colitis do I have?
  • What treatment is best suited for me?
  • Will I need long-term medication?
  • Are there dietary restrictions I should follow?
  • What are the risks of complications?
  • Is surgery an option for me?

How to Support Someone Dealing with Colitis

  • Listen without judgment
  • Help them adhere to dietary or medication routines
  • Be patient during flare-ups
  • Educate yourself on their condition
  • Encourage regular medical check-ups

Conclusion

Colitis is a chronic but manageable condition affecting millions globally. With early diagnosis, lifestyle changes, and appropriate treatments, individuals with colitis can lead fulfilling lives. Raising awareness and debunking myths can help build a more supportive environment for those navigating this challenging condition.


 

FAQs

Is colitis the same as Crohn's disease?

No, but both are types of inflammatory bowel disease (IBD).

Can colitis go away on its own?

Some forms like mild infectious colitis can, but chronic types require treatment.

Is colitis life-threatening?

It can be if complications like toxic megacolon or perforation occur.

Can diet alone treat colitis?

No, diet supports but does not replace medical treatment.

Is colitis contagious?

Only infectious colitis is contagious, not autoimmune types like ulcerative colitis.
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