Gender bias in research and clinical practice prevents many women from receiving a joint diagnosis of autism and ADHD (AuDHD) until later in adulthood. This literature review provides insight into the process of late diagnosis of AuDHD in women and the impact diagnosis has on their life. Research was obtained from the PsycINFO database. Thirteen journal articles published between 2021-2024 met the criteria to be included and were subjected to in-depth narrative analysis. Results indicated common themes in the experiences of late diagnosed adult women including frustration with lack of support pre- and post-diagnosis, skewed understandings and reinforcement of autism/ADHD stereotypes, and gender-biased diagnostic criteria. Implications for future research are discussed and include expanding sample diversity and incorporating AuDHD voices into all stages of research.