Hymenolepiasis Clinical Presentation

Updated: Dec 21, 2020
  • Author: Harbir Singh Arora, MD; Chief Editor: Russell W Steele, MD  more...
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Presentation

History

Most of the cases infected with H. nana are asymptomatic. Several studies have reported non-specific symptoms such as abdominal pain, loss of appetite, diarrhea, flatulence, weight loss, irritable behavior, anal pruritus, nasal pruritus, delayed growth. [9, 10, 11, 12] Increased severity of symptoms has been reported in patients with higher load of infestation (>3000 parasites). [13]

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Physical

Aside from rare abdominal tenderness or urticaria, physical examination is typically unrevealing.

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Causes

The infection is acquired mainly by fecal-oral route. The risk factors of infection with H. nana include absence of proper sanitation, contact with environments contaminated with human feces, inadequate treatment of excreta and waste, consumption of untreated water, presence of infected person in the household, and bathing in contaminated irrigation canals. [14]

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