Birth control effectiveness

Birth control effectiveness refers to how well different methods prevent pregnancy when used correctly. For example, some methods like long-acting reversible options (injections, implants, IUDs) have very high effectiveness, often over 99%, meaning fewer than 1 in 100 users might get pregnant annually. Others, like birth control pills or patches, are around 91% effective with typical use, meaning about 9 out of 100 users may become pregnant each year due to missed doses or incorrect use. Consistent and correct use of any method improves its effectiveness, but no method is 100% foolproof.