In a recent 37-nation survey of 2903 geneticists and genetic counselors, 29% would perform prenatal diagnosis (PND) for a couple with four girls who want a boy and would abort a female fetus. An additional 20% would offer a referral. The percentage who would perform PND in the United States (34%) was exceeded only by Israel (68%), Cuba (62%), Peru (39%), and Mexico (38%). In all, 47% had had requests for sex selection. There appears to be a trend toward honoring such requests since a similar survey in 1985. This paper discusses reasons for this trend and the ethical dilemmas of refusing patient requests in societies where individual autonomy is stressed.