Pinworm

 

This is caused by Enterobius vermicularis which is an intestinal nematode parasitic worm. Its adults lives in the intestine and the female migrate to the perinanal area in the night to release its eggs up to 10,000 eggs at a time. The infected then scratch his perianal skin and get the eggs under his nails by which he can then transmits through feco-oral means to members of his family or his institutional. The larvae hatch out and mature in the intestine and after ingestion. It causes perianal pruritis most especially at night and some abdominal discomfort with pain and weight loss if infection is heavy.

 

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