OverviewThis is an egg of Ascaris lumbricoides. Ascarides are roundworms, a common parasitic infection throughout the world. It is estimated that as many as 1 billion people (one sixth of the world population) may be infected with roundworms.
Update Date 5/11/2016
Updated by: Subodh K. Lal, MD, gastroenterologist with Gastrointestinal Specialists of Georgia, Austell, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.