Pinworm Infestation (Enterobiasis; Oxyuriasis) By Chelsea Marie, PhD, University of Virginia; William A Petri, Jr, MD, PhD, University of Virginia School of Medicine Reviewed / Revised Sep 2022 View Patient Education Pathophysiology Symptoms and Signs Diagnosis Treatment Prevention Key Points Topic Resources Enterobius Life Cycle Enterobiasis is an intestinal infestation by the pinworm Enterobius vermicularis, usually in children, but adult members of their household and caregivers, institutionalized people, and those who have anal-oral contact with an infected partner during sex are also at risk.