Enterobius vermicularis (pinworm) is a common intestinal parasite often seen in the primary care setting, regardless of race, culture, or socioeconomic status. While humans are thought to be the primary hosts, primates may be the alternate hosts. Although generally believed to be an infestation affecting children between 5 and 10 years, it may also occur in adults. Usual manifestations are perianal itching, sleeplessness, hyperactivity, weight loss, abdominal pain, and vomiting. Nongastrointestinal manifestations are pruritus vulvae, urinary tract infections, postmenopausal bleeding, epididymitis, pelvic mass, chronic sialadenitis, unilateral salpingitis, and rarely hepatic involvement. E. vermicularis is a small parasite that inhabits the cecum, though occasionally has also been reported in the appendix. A fully mature gravid female migrates nocturnally through the anus and deposits the eggs in the perianal region. The worm is usually 3e10 mm long and causes an intense itching in the perianal area, especially at night. Eggs survive for a long time in the perianal region and can survive up to 3 weeks on clothing. The infestation is diagnosed by identifying adult worm or its eggs in the perianal area. Our patient is 40-year-old male who presented with a complaint of increased frequency of stools for 1 month, four to five episodes per day with passage of semisolid
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