Adherence to long-term medications has remained a problem among adolescents worldwide. Antiretroviral therapy adherence is a wide-reaching challenge among HIV positive adolescents. The aim of this study is to explore and describe poor ART adherence among HIV positive adolescents in Maseru: influential factors and the need of social work support. Qualitative approach was used, following an explorative, descriptive and contextual research design. The research was conducted at BCMCOE Lesotho. Data was collected by using semi-structured in-depth interviews and purposive sampling was applied to select a sample of adolescents who are HIV positive and who have poor adherence to ART. Data was analysed according to the framework provided by Tesch (in Creswell 2003). Guba’s model (in Krefting 1991) was employed for data verification. Conclusions were drawn and recommendations were made about factors influencing adherence of adolescents to ART and support needed from social workers. / Social Work / M.A.(S.S.)