DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Editorial use only.
Contraceptive coil. Box containing a hormonal intrauterine device (IUD, coil). An IUD is a small contraceptive device that is inserted into the uterus in order to prevent fertilisation. It can contain either copper or levonorgestrel (synthetic progestogen hormone, as here). Copper acts as a spermicide and copper IUDs primarily work by disrupting sperm mobility and damaging sperm so that they are prevented from joining with an egg. IUDs typically have a life on 5 years, after which they should be removed.
Model release not required. Property release not required.