The Swedish abortion legislation of 1975 gave women the right to make a decision about abortion before the end of the 18th week of pregnancy. The number of abortions is rising in Sweden as a chosen method of birth control. The attitudes of students toward abortion were studied in 1986-1987. A questionnaire containing items on how sex education is taught, the anatomy and physiology of reproduction, contraceptives, sexually transmitted diseases, and legal abortion was answered by 421 high school students. Results pertaining to the students' attitudes toward abortion are reported. Two thirds of the students believed that the decision about an abortion should be made by the man and woman together. Nearly all respondents believed that abortion should not be considered a method of birth control. These results may be considered a guide for interventions to prevent the need for abortion. One fourth of all pregnancies in Sweden terminate in abortion. The students in the present study thought of abortion as a solution. Authors studying samples with different cultural backgrounds have reported similar attitudes.