Purpose: The knowledge loss or longevity of taught lessons is a major concern in medical students and all medical practitioners. This study evaluated the physiology knowledge loss in medical students in Ahvaz Jundishapur University of Medical Sciences in Iran.
Methods: A total of 265 volunteers from medical students who had previously passed the "general exam of medical basic sciences" at the end of fifth semester took a retention test (RT) to evaluate their knowledge loss of physiology.