Parasitology

Ascaris and Trichuris Eggs in Stool Microscopy

Morphology of Ascaris lumbricoides and Trichuris trichiura eggs in native stool samples. Features of detecting mixed geohelminthic invasions in the laboratory.

Native stool sample: Ascaris and Trichuris eggs in one field of view
Native stool sample: Ascaris and Trichuris eggs in one field of view

⚠ Answer to the parasitology problem: Eggs of Ascaris lumbricoides (roundworm) and Trichuris trichiura (whipworm). ✅ Both fertilized and unfertilized Ascaris eggs are present. Patients from endemic areas often have co-infections with geohelminths. Therefore, we conclude: if you see one parasite, keep looking!