This narrative review is based on a literature search on PsycIN-FO and PubMed that involved entering the terms adolescent sexting for papers published during the last five years. Following exclusion criteria, 52 papers could be classified as sexting studies including research on the prevalence, effects/comorbidities, risk factors and interventions for those problems. Most of the studies have been conducted in the U.S. where the prevalence of sexting has ranged from 5% to 29%. Sexting has typically been consensual, or at least the recipient has been known, although some forwarding of sext messages has occurred. The effects of sexting have included sexual activity, problematic relationships, mental health problems, other addictions and legal problems. The predictor or risk variables have included male gender, extraverted personality, low self-esteem, depression, impulsivity, peer pressure and the lack of parental monitoring. Like other literature on adolescent problems, this research is limited by primarily deriving from self-report and parent report and by the absence of longitudinal data that might inform whether the data being reported are effects of or risk factors for adolescent sexting and the need for prevention/intervention research.