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Understanding sex, health, and relationships among bi+ people in Australia

The Bi+ Sexual Health and HIV (BiSHH) study was the first national survey of sex, health, and relationships designed specifically for the bi+ community in Australia. This study collected over 2,000 responses from bi+ people across Australia in 2024-2025 and was developed through meaningful partnership between researchers and bi+ community members. This report outlines an overview of the key findings from the BiSHH study and provides much-needed data on the distinct sexual health and HIV experiences of bi+ people in Australia.

Key findings
  • Most (89%) of participants accessed a sexual health-related service in Australia at least once in their lifetime, with general practice (82%) most common, followed by a sexual health clinic (47%)
  • In the past 12 months, roughly half of participants had been tested for STIs (51%) and HIV (42%), and 7% were currently using PrEP. Over one-third (36%) had been diagnosed with an STI in their lifetime, 8% in the last 12 months
  • Bi+ people reported a range of barriers to feeling included within LGBTQ+ and general sexual health services. Less than half (47%) felt welcome in LGBTQ+ sexual health services and only 41% felt general sexual health services were knowledgeable and inclusive of bi+ people.
  • In addition to sexual health, participants reported a high prevalence of adult sexual violence perpetrated against them (63%), psychological distress (28%) and recent illicit drug use (24%)
  • These findings highlight the need to prioritise the distinct sexual health experiences of bi+ people and to strengthen bi+ inclusion within sexual healthcare settings. These data provide much-needed evidence to inform policy and practice responses that better support this largely overlooked, but significant, subpopulation within LGBTQ+ communities.