Kjellstedt, C & Grönqvist, S. Nurse´s experiences of inadequate pain relief. A phenomenological study. Degree project in Nursing 15 Credit Points. Malmö University. Health and Society, Department of Nursing, 2010. A nurse daily meets patients who suffer from pain and has a key role in assessing this pain as well as in evaluating the treatment plan. The aim of this study was to describe some nurses’ experiences and emotional coping of not being able to relieve the patient’s pain, from an advanced beginner- expert nurse perspective. For this study Giorgi’s descriptive phenomenological approach was used. A total of four in depth interviews was conducted with nurses working at a hospital ward. Patricia Benner’s theory of advanced beginners and expert nurses was used to give a deeper understanding of the nurse’s experiences. The result show that nurses experience feelings of frustration and powerlessness when not being able to relieve a patient’s pain. Coping with these feelings needs clinical knowledge as well as a good atmosphere on the ward. Due to their lack of clinical knowledge advanced beginners has a bigger need for support from colleagues. Keywords: Advanced beginners, descriptive phenomenology, expert nurses, frustration, pain relief, experiences.