Uncommon Upper Gastrointestinal Bleeding Linked to Leech Infestation: Insights from Dual Case Studies

1. Abstract
Leeches, hermaphroditic parasites capable of attaching to various body parts and engaging in blood-sucking behavior. Exhibit a surprising ability to engorge up to 890% of their own body weight. Moreover, their saliva contains anticoagulant-like enzymes that can result in significant bleeding.