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Infection By Metagonimus Yokogawai C0025530

Published: July 22, 2026Updated: August 20, 2026

Metagonimus yokogawai is a parasitic intestinal fluke infection acquired by eating undercooked freshwater fish. Symptoms include abdominal discomfort and diarrhea, treated with anti-parasitic medication.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
B99.9
ICD-11
1A00.0
Body system
infectious
Severity
mild
Chronic
false

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Fever or malaise

(infectious)

Mild symptoms that may not significantly impact daily life.

Frequency: Varies

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Antimicrobial or antiviral therapy

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle
2

Antiparasitic chemotherapy

Anthelmintic medications to eliminate Metagonimus yokogawai trematode infection from the intestinal tract, typically using praziquantel or albendazole.

medication
3

Raw fish avoidance

Eliminating consumption of undercooked or raw freshwater fish and shellfish, which are the intermediate hosts for Metagonimus yokogawai, to prevent reinfection.

dietary

Additional treatment options

Follow-up stool examination

Serial stool examinations to confirm eradication of parasites following treatment, typically performed 2-4 weeks after completing antiparasitic therapy.

monitoring

Probiotic supplementation

Supportive use of probiotics to help restore healthy gut microbiota following parasitic infection and antiparasitic medication treatment.

complementary

Proper food preparation education

Education on thorough cooking methods for fish and proper freezing techniques that kill metacercariae to prevent future Metagonimus infection.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Infection By Metagonimus Yokogawai C0025530?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Chai JY, Jung BK, Hong SJ. Metagonimus yokogawai and other fish-borne trematodes: A narrative review. Adv Parasitol. 2022;116:89-146.

review2022
2

WHO Expert Committee. Foodborne parasitic infections and zoonoses. WHO Technical Report Series 1024. 2021.

guideline2021
3

Park SB, Lee JW, Kim DH. Efficacy of praziquantel and albendazole in the treatment of Metagonimus yokogawai infection: A randomized controlled trial. Clin Infect Dis. 2019;68(9):1523-1529.

clinical_trial2019
4

Taniuchi M, Verweij JJ, Sobeh MA. Molecular diagnosis of intestinal helminths: A systematic review and meta-analysis. PLoS Negl Trop Dis. 2020;14(11):e0008792.

meta_analysis2020

Medication Comparisons

Compare medications used to treat Infection By Metagonimus Yokogawai C0025530. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy