Abstract
Ascariasis (round worm) is the largest worm of the common nematodes that infect humans and causes the disease ascariasis. It is most common in tropical and subtropical countries where poor sanitation and illiteracy prevail. Most patients with the disease are asymptomatic; however significant morbidity can arise from the migration of the worm from the small bowel to ectopic sites causing complications. One of the complications is biliary system infestation where the worm travels to the biliary tract.Presentation of symptoms can range from biliary colic to more complicated symptoms such as acute pancreatitis and liver abscess. Early diagnosis and intervention are vital to halt the progression to life-threatening complications. This case report highlights a rare complication of Ascaris infection of the biliary system.