Epidemiological estimates of the sexual risk behavior of drug users ha
ve provided essential indicators to the current and future prevalence
of HIV transmission. An overview of recent research shows the majority
of drug injectors to be sexually active, low levels of reported condo
m use, a significant minority of female injectors to be involved in pr
ostitution, relatively high levels of sexual mixing between drug injec
tors and noninjectors, and only scant indications of sexual behavior c
hange. Epidemiological studies of risk, however, are unable to yield t
he data required to understand the interaction between individual risk
behavior and social relationships. This is required if obstacles to s
afer sex compliance and sexual behavior change are to be overcome, and
demands recognition of the influence and importance of social context
on the production of sexual risk behavior in future research and inte
rvention designs. In response, the paper explores the future role of q
ualitative research in understanding the social relations of ''risk''
and in contributing toward theoretical advancements in explanations of
risk perception and risk behavior. The paper concludes by discussing
the implications of this analysis for developing interventions which a
im to target social relationships as agents of social network and comm
unity change.