Pinworm vs. Tapeworm: Differences, Symptoms & Diagnosis

Both are intestinal parasites, but they differ significantly:

Feature	Pinworm (Enterobius vermicularis)	Tapeworm (Taenia, Diphyllobothrium, etc.)
Size	2–13 mm (tiny, threadlike)	Up to several meters (segmented, flat)
Primary Host	Humans (children most affected)	Humans (definitive host); cattle/pigs/fish (intermediate)
Transmission	Fecal-oral (eggs on hands, fomites, airborne)	Eating undercooked infected meat/fish
Key Symptom	Perianal itching (night)	Often asymptomatic; segments in stool; weight loss
Diagnosis	Scotch tape test (morning)	Stool O&P for eggs/proglottids
Treatment	Mebendazole or albendazole (single dose, repeat 2 wks)	Praziquantel or niclosamide

Prevention

• Handwashing (especially after toilet, before eating)
• Cook meat/fish thoroughly (63°C whole, 74°C ground)
• Freeze fish (−20°C × 7 days or −35°C × 15 hrs) for sushi safety
• Safe water

See a doctor for diagnosis—symptoms overlap but treatments differ.