Background: Adolescents in Tanzania are a socially, economically, and sexually active group that significantly influences public health trends, particularly in sexual and reproductive health. Despite health facilities that offer adolescent-friendly sexual and reproductive health services (SRHS), their use is low, especially among unmarried adolescents. This potentially exposes them to risky sexual practices, unwanted pregnancies, unsafe abortion, and sexually transmitted illnesses (STIs, including HIV. This paper explores the use of SRHSs by unmarried adolescents in Tanzania and the factors associated with it.

Methods: This study employed a cross-sectional quantitative household survey to collect data from 312 unmarried adolescents aged 15 -19 years in the selected streets and villages located in Morogoro municipal and Mvomero District of the Morogoro region, Tanzania.

Results: Of the 312 unmarried adolescents who participated, 17.9% reported having ever visited a health facility to receive SRHSs. The study found that unmarried adolescents who had ever worked for pay were 1.98 times more likely to use SRHSs than those who had never worked for pay (RR=1.98, p=.025). Moreover, unmarried adolescents who had been in sexual