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gastrointestinal

Microscopic Colitis

A type of inflammatory bowel disease causing chronic, watery diarrhea, diagnosed only by colon biopsy.

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Overview

Microscopic colitis is an inflammatory condition of the colon that causes chronic, watery diarrhea. Unlike Crohn's disease and ulcerative colitis, the colon appears normal on colonoscopy — the inflammation is only visible under a microscope (hence the name). It is more common in older adults, particularly women, and is often misdiagnosed as IBS. Treatment with medication is usually effective.

Symptoms

Common Symptoms

  • Chronic, watery diarrhea (the hallmark symptom)
  • Abdominal pain and cramping
  • Bloating
  • Urgent bowel movements
  • Fecal incontinence (in some cases)
  • Weight loss (in some cases)
  • Fatigue
  • No blood in stool (unlike other IBDs)

Diagnosis

Diagnosis typically involves clinical evaluation, medical history, blood tests, and appropriate imaging studies. A healthcare provider will assess symptoms, order relevant laboratory work, and may refer to a specialist for confirmation.

Treatments

Treatment depends on the underlying cause and severity. Options may include medication, lifestyle modifications (diet, exercise, stress management), and ongoing monitoring. Always work with a qualified healthcare provider to develop an appropriate treatment plan.

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