The syndemic of HIV, sexually transmitted infections (STIs), and early pregnancy remain a key challenge to
global public health. Decision-making around sexual and reproductive health (SRH) behaviours is critical to
ensuring the uptake of biomedical technologies. Drawing from behavioural science theories, we propose a novel
conceptual framework—the Decision Cascade—to describe the decision-making process that a user will go
through as they navigate these decisions. Analogous to the HIV prevention and treatment cascade, this model
describes key steps individuals go through when deciding to use HIV prevention technologies.