Ehkäisypistos

Ehkäisypistos, commonly known as the birth control shot or injection, is a method of hormonal contraception administered by a healthcare professional. It involves an injection of a progestogen hormone, typically medroxyprogesterone acetate, into the muscle. This hormone prevents pregnancy by stopping ovulation, thickening cervical mucus to block sperm, and thinning the uterine lining.

The injection is typically given every 12 to 13 weeks, making it a long-acting reversible contraceptive. Its effectiveness is very high, with typical use failure rates around 6%. This method is a good option for individuals who prefer not to take a daily pill or who may have difficulty remembering to use other methods consistently. It is also suitable for breastfeeding women after a certain period postpartum.

Like all hormonal contraceptives, ehkäisypistos can have side effects. Common side effects include irregular bleeding or spotting, menstrual changes (lighter or absent periods), weight gain, headaches, and mood changes. Some individuals may experience a temporary decrease in bone mineral density, which usually recovers after discontinuation. It is important to discuss potential side effects and suitability with a healthcare provider before starting this method. Reversibility means fertility typically returns within a few months after the last injection, though it can take longer for some individuals.