This document discusses fertility preservation options for adolescents and young adults undergoing cancer treatment. It provides an overview of the risks cancer treatments pose to fertility for both males and females. For males, sperm banking and testicular tissue freezing are discussed as options. For females, embryo banking, oocyte cryopreservation, and ovarian tissue freezing are covered, though many methods are still considered experimental. The challenges of discussing fertility with young patients and barriers to accessing fertility preservation are also summarized.