[Critical analysis on the evolution of ethical norms for the use of assisted reproduction techniques in Brazil].

The Federal Medical Council (FMC) published FMC Resolution No. 1,358/1992 with the aim of adopting ethical standards for the use of Assisted Reproduction Techniques (ART). This resolution was updated in 2010 (CFM No. 1957/2010), in 2013 (CFM No. 2,013/13) and the last update was in 2015 (CFM No. 2.121/2015). The scope of this article is to conduct a critical analysis of the evolution of the ethical norms proposed by FMC for the use of ART in Brazil. A documentary analysis of the text of the four published Resolutions was carried out, in which the ethical standards for the use of ART were described. It was observed that the resolution evolved in relation to the rights of homosexuals, adopted more permissive measures regarding cryopreservation, donation of gametes and embryos and uteruses on loan and lastly authorized some procedures in ART such as postmortem reproduction, donation and shared gestation. From 2013 onwards the resolution gained a liberal character being updated in terms of clinical practice. For the next updates it would be interesting to include procedures in ART not previously addressed such as nuclear and cytoplasmic transfer. The update frequency (every two years) should be kept to the ethical standards enabling the ART to continue evolving together with the advancement of science.