It can stay for a year, or ten years, depending on the type of device. The devices were blamed for serious health problems in some women in the 1970s, which caused their use to drop. However, new devices appear to be both safe and effective. They can have some negative side effects, such as cramping and spotting after insertion, and heavier and longer menstrual bleeding, but that does not occur in many cases. Progestin implants and injections Progestin implants involve surgically placing six small capsules under the skin of a woman's upper arm.
Implants are an extremely effective form of contraception and can last for up to five years.
If you have a history of blood clots, breast cancer, or liver disease, among other things, this type of contraception should not be used. Removal of the implants can cause scarring, and while inserted they can have a number of side effects, including irregular uterine bleeding, headaches, and nervousness. This method should be avoided by people with similar risk factors as those for implants. Side effects of the two methods are similar as well. In addition to the male condom, there are a number of other types of contraception that work by preventing sperm from fertilizing eggs.