Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/26/2025

Anisakiasis Clinical Manifestations

Primary Symptoms

  • The most common symptoms of anisakiasis are acute severe abdominal pain, nausea, and vomiting, which typically occur within hours after consuming raw or undercooked fish 1, 2
  • Gastrointestinal symptoms, including acute severe abdominal pain and nausea and vomiting, are the predominant symptoms of anisakiasis 1, 2
  • Anaphylaxis, a severe allergic reaction, can occur in some cases of anisakiasis 1, 2