About this person


  • Gastroenterology
  • Cancer in primary care
  • Infections in primary care

Knut-Arne Wensaas graduated with a medical degree from the University of Bergen in 1993. He acquired clinical speciality in family medicine in 2001 and is working as a general practitioner at Kalfaret legesenter in Bergen.

He defended his Ph.D. thesis in 2011 «Giardiasis in Bergen – Outbreak and clinical consequences». Currently he holds a 50% position as senior researcher on his post doctorate project «Irritable bowel syndrome and chronic fatigue following infection with Giardia lamblia. Premorbid factors and long-term consequences».

Knut-Arne Wensaas is the leader of the Network Group for Gastroenterology of the Norwegian College of General Practice and member of the council and former chairman of the European Society for Primary Care Gastroenterology.

His research interests include infectious disease, gastrointestinal diseases, medically unexplained disorders and primary care epidemiology.



All articles

Book chapters


  • Wensaas, Knut-Arne Efficacy and Cost-Effectiveness of Alendronate for the Prevention of Fractures in Postmenopausal Women in Norway.. Knowledge Centre for the Health Services at The Norwegian Institute of Public Health 2017.

Other publications

  • Emberland, Knut Erik; Wensaas, Knut-Arne; Litleskare, Sverre; Rørtveit, Guri Gastroenteritis in primary care in Norway 2006-2015: encounters in general practice and out-of-hours services. 2017.
  • Litleskare, Sverre; Rørtveit, Guri; Eide, Geir Egil; Emberland, Knut Erik; Hanevik, Kurt; Langeland, Nina; Wensaas, Knut-Arne Irritable bowel syndrome, chronic fatigue and quality of life ten years after a Giardia lamblia epidemic in Norway 2004. 2017.
  • Wensaas, Knut-Arne; Rørtveit, Guri; Litleskare, Sverre; Emberland, Knut Erik Management of gastrointestinal infections in the Nordic countries. 2017.
  • Emberland, Knut Erik; Wensaas, Knut-Arne; Litleskare, Sverre; Rørtveit, Guri Gastroenteritis in Norway 2006-2015: consultations in primary care. 2017.
  • Wensaas, Knut-Arne; Redmond, N; Turnbull, S; Christensen, H; Thornton, H; Peters, T; Blair, P; Heron, J; Hay, Alastair D. Post consultation symptom duration in children with acute cough and respiratory tract infection: prospective cohort study. 2017.
All other publications
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Ongoing projects

All projects
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