Tapeworm vs. Ringworm vs. Hookworm: Key Differences

Tapeworm (Cestode)

• Type: Flat, segmented parasitic worm (helminth)
• Location: Intestines
• Size: Up to 25+ feet (7.5+ meters)
• Transmission: Ingesting undercooked meat (beef, pork, fish) containing larvae
• Symptoms: Often asymptomatic; may cause abdominal pain, nausea, weight loss, nutrient deficiencies, visible segments in stool
• Treatment: Praziquantel or niclosamide

Ringworm (Dermatophytosis)

• Type: Fungal infection (not a worm)
• Location: Skin, scalp, nails (superficial)
• Appearance: Circular, red, scaly rash with central clearing (ring-like)
• Transmission: Direct contact with infected person/animal, contaminated objects, soil
• Symptoms: Itchy, red, scaly patches; hair loss if scalp involved
• Treatment: Topical antifungals (clotrimazole, terbinafine); oral for extensive/scalp/nail infections

Hookworm (Nematode)

• Type: Roundworm (helminth)
• Location: Small intestine
• Size: 1–2 cm (barely visible)
• Transmission: Larvae penetrate skin (usually feet) from contaminated soil
• Symptoms: Ground itch at entry site, cough (lung migration), abdominal pain, diarrhea, iron-deficiency anemia, protein loss
• Treatment: Albendazole or mebendazole; iron supplementation for anemia

Key distinction: Tapeworms and hookworms are internal parasites; ringworm is a superficial fungal infection.