This qualitative research delves into the exploring the psychosocial experiences of adoptees within their adoptive families, with a focus on their mental well-being. The study employed an Interpretative Phenomenological Analysis approach to explore the psychosocial experiences of within-family adoptees in relation to mental well-being. The research involved six participants who were engaged in semi-structured interviews. The analysis revealed master themes and generated sub-themes through coding method. Five master themes were communication barriers, assistance, identity crisis, general societal attitudes, and emotional disturbance that contributed to a deeper understanding of the mental well-being for adoptees and shed light on various psychosocial aspects within the family context. The research sheds light on the various emotional, relational, and identity-related aspects that influence adoptees’ mental health within the family context. The findings contribute to a deeper understanding of adoptees’ needs and suggest implications for supporting their overall well-being.