Ehkäisypistokset

Ehkäisypistokset, often referred to as the contraceptive injection, are a method of hormonal birth control administered by a healthcare professional. These injections contain synthetic hormones, typically progestin or a combination of progestin and estrogen, which prevent pregnancy. The hormones work by inhibiting ovulation, thickening cervical mucus to block sperm, and thinning the uterine lining to prevent implantation.

There are several types of contraceptive injections available, with the most common containing only progestin. These progestin-only injections are typically given every 3 months. Combined injections, containing both estrogen and progestin, were more common in the past but are less frequently used now due to potential side effects and a wider range of progestin-only options.

The effectiveness of contraceptive injections is very high when used correctly, making them a reliable form of pregnancy prevention. However, like all hormonal contraceptives, they do not protect against sexually transmitted infections. The decision to use contraceptive injections should be made in consultation with a healthcare provider who can assess individual health history and suitability. Potential side effects can include irregular bleeding, weight changes, headaches, and mood changes, though many women experience no significant side effects. The return of fertility after stopping injections is generally rapid, but can vary among individuals.