Background Young adults with long‐term conditions can struggle to accept their diagnosis and can become overwhelmed with managing their condition. Suboptimal transfer from paediatric to adult services with a resultant disengagement with the service can result in less involvement in care and decision‐making. Shared decision‐making can improve involvement in health decisions and increase satisfaction with treatment/therapy and care. Objectives An integrative literature review was conducted to explore and understand young adults’ experiences of decision‐making in health care. Design An integrative literature review. Data Sources CINAHL, EMCARE, PsycINFO, HMIC, EMBASE, Web of Science, PubMed, MEDLINE, EBSCOHOST and COCHRANE databases were searched for relevant literature published between January 1999 and January 2020. Findings Thirteen primary research papers met the inclusion criteria. Four main themes were identified: (1) Information delivery and communication; (2) participation in decision‐making; (3) social factors influencing decision‐making and (4) emotional impact of decision‐making. Conclusions Young adults with long‐term conditions have specific decision‐making needs which can impact their emotional health. Research with a specific focus on young adults’ experiences of decision‐making in health care is needed.