Read condition-specific symptoms and clinical context for Giardia duodenalis. An intestinal protozoan with a flagellated feeding form and a separate cyst form.
An intestinal protozoan with a flagellated feeding form and a separate cyst form. Infection may be asymptomatic or cause diarrheal illness.
Infection may be asymptomatic or cause diarrheal illness.
Possible symptoms: Diarrhea; Gas and cramps; Greasy stool.
This educational profile cannot diagnose an infection. Seek qualified care for concerning symptoms.
An infection can be present without symptoms.
No symptoms are assigned to asymptomatic carriage.
This educational profile cannot diagnose an infection. Seek qualified care for concerning symptoms.
Source check: 2026-09-21. Educational content; independent scientific review remains pending.