Faecal Microbiota Transplantation for Microscopic Colitis

Inclusion Criteria: * Diagnosis of microscopic colitis * Date of diagnosis/histological confirmation \< 12 months * Active disease according to Hjortswang's criteria Exclusion Criteria: * Diagnosed with ulcerative colitis or Crohn's disease * Diagnosed with celiac disease * Active gastrointestinal infection * Previous bowel resection of bowel (except appendectomy) * Previous cholecystectomy * Treatment with systemic steroid within 4 weeks, including budesonide * Antibiotics 3 months prior * Severe immunodeficiency, * Pregnancy, planned pregnancy and breastfeeding * Treatment with constipants such as psyllium, loperamide, bile binders, opium drops or codeine up to 2 weeks before inclusion and during participation