"A 9 years old girl was admitted to Hospital USM with vaginal bleeding. She had a history of swimming in a river prior to the incident. She was pale. An aquatic leech bloated with blood detached from the vagina after 20 milliliters of normal saline flushing of the vagina. The bleeding continued after the detachment. The patient needed 1 unit (250 milliliters) of Packed Cell transfusion. The bleeding stopped 24 hours later. Professionals must be aware of the possibility of leech bites in the vagina as the differential diagnosis for abnormal vaginal bleeding, especially in places where leeches are prevalent."