In humans, infection with Hymenolepis diminuta is usually uncommon but has been reported from various areas of the world. Parasitization rates ranging between 0.001% and 5.5% have been reported according to different surveys. We report a rare case of H. diminuta infection in a 10-year-old female from the rural area of Kendrapada district of Odisha. The patient came to our pediatrics outpatient department with the chief complain of intermittent abdominal pain, anal pruritus and nocturnal restlessness. She responded well to praziquantel therapy.

Balantidium coli is the largest ciliated protozoa infecting humans by the feco-oral transmission from pigs. Large gut is the most common site of involvement. Symptomatology varies from asymptomatic carrier to invasive dysentery. Extra-intestinal infections can occur in liver, lung and urogenital tract. There are very few case reports of urinary balantidiasis. We present a case of urinary balantidiasis in an elderly farmer having diabetes and chronic kidney disease. This case is reported for its rarity and future references.

Hymenolepis diminuta also known as rat tapeworm rarely causes hymenolepiasis in humans. We report a case of H. diminuta infection in an 18-year-old male farmer who presented with intermittent pruritic maculopaular rashes and dull aching left iliac fossa pain for 6 months. Patient was cured with 2 doses of praziquantel 20 mg/kg on day 0 and 7.

S. stercoralis infection is very common in South East Asian countries including India. Chronic infection is very common with symptoms of diarrhea, abdominal pain, nausea, vomiting, anemia, and cough. Hyperinfection and dissemination usually occur in immunocompromised patients with symptoms mimicking asthma, COPD, or aseptic meningitis. Very few cases of hyperinfection and dissemination have been documented in immunocompetent patients. We report this case for its rarity and future references.