Autistic people often experience difficulties with healthcare, and are more likely than neurotypical people to have unmet healthcare needs. They may also be more likely to find menstruation and menopause more difficult than neurotypical women. Healthcare professionals (HCPs) often have insufficient training and support to work with autistic adults, and they often lack the skills or confidence to discuss reproductive and sexual health (RSH) with patients. When these two issues are combined, it would appear that autistic people may experience particular difficulties when seeking RSH care. The aim of this study was to explore autistic people's experiences of healthcare related to RSH in the United Kingdom. Surveys were distributed with assistance of an autism charity, and were completed by 136 adults. The survey consisted mainly of tick-box responses, but there were also several opportunities for participants to write comments about their experiences. Respondents felt that HCPs almost never seem to know how autism affects their RSH. There was broad agreement that HCPs need to be more aware of the impact of autism on healthcare experiences in general, and the specific impacts of autism on RSH. The data provide a clear picture of unmet needs for autism-aware healthcare for RSH, but further research is required to explore HCPs' knowledge about how autism affects RSH. Combined with our findings, such research could inform the development of resources and training to improve healthcare for autistic people.