Since there are few data on the use of various birth control methods in systemic lupus erythematosus (SLE), we performed a cross-sectional study of the actual contraceptive practices in a group of 85 Finnish female SLE patients of reproductive age. We also recorded side-effects experienced during the use of oral contraceptives (OCs) and intrauterine devices (IUDs). The use of contraception was lower in SLE patients than in healthy women of the same age (59 vs 77%, P