The diagnosis of premature ovarian failure (POF) for a 20-year-old woman is devastating and will impact on many areas of her life. She deserves prompt confirmation of the diagnosis and accurate, honest information about the condition including the chances of conception and long-term health issues. She should be offered investigation of aetiology, although this may be hard to establish, and assessment of associated medical conditions. Oestrogen replacement should be advised for long-term use until the normal age of menopause, and she should be fully counselled on the benefits and risks of hormone replacement and her options of which preparation to take. Long-term follow-up is needed, and this is likely to require multidisciplinary input, including that from a gynaecologist, clinical psychologist and fertility team. POF may not be the appropriate terminology for this condition. Ovarian function often fluctuates in young women with POF, who may continue to menstruate occasionally and even conceive spontaneously. In view of this unpredictability, ‘premature ovarian insufficiency’ is a better description of the condition and carries a less negative connotation than ‘ovarian failure’ which can cause great distress. We recommend that the condition is termed ‘premature ovarian insufficiency’ (Clinical Endocrinology 2008;68:499).