Symptomatology
About one‐third of pinworm‐infected persons are
asymptomatic, The adult worms may cause slight
irritation of the intestinal mucosa.
Major symptom is anal pruritus, which associates with
the nocturnal migration of the gravid females from the
anus and deposition of eggs in the perianal folds of the
skin.
In young girls, migration of the worms may produce
vaginitis and salpingitis (ปีกมดลูกอักเสบ) or granuloma of the
peritoneal cavity.