Contraception. Artwork of assorted contraception methods surrounding a uterus containing an intra- uterine device (IUD). Clockwise from upper right are: a male condom and femidom (barrier methods),some IUDs,a cervical cap (diaphragm,lower left,also a barrier method),a syringe for injecting a long-term contraceptive,and a digital thermometer (top left) for the natural method of monitoring a woman's menstrual cycle. The syringe injection is a hormonal method of control,as are the skin implants (small sticks,centre right). IUDs placed in the uterus can prevent the implantation of a fertilised egg. The strings hang down inside the vagina,and allow removal of the IUD |