A study of the acceptability of Uniplant, a 12-month single implant of nomegestrol acetate, included 819 women from Africa, Latin America, and China, participating in a clinical trial of Uniplant. A standard, pre-coded questionnaire was specially designed for this purpose and applied at the moment of removal of implant, either at the end of 12 months of use or at the time of discontinuation for whatever reason. The level of satisfaction proved high when users' comparison with their previous contraceptive method, users' recommendation of Uniplant to others, users' intention to use the method in the future, and service satisfaction were taken into consideration. Uniplant was considered easy to use, safe (low risk of pregnancy), and also to cause fewer side effects than other methods. When asked about the least liked feature of Uniplant, almost half the respondents said that there was nothing that they disliked and about one-third mentioned the changes in their menstrual pattern. However,