contraception efficacy

Contraception efficacy refers to how well a method prevents pregnancy when used correctly. It's usually expressed as a percentage: for example, a method with 99% effectiveness means that out of 100 women using it for a year, about 1 may become pregnant. No method is 100% foolproof, but some are more reliable than others. Effectiveness depends on consistent, correct use; typical use accounts for human error and may reduce effectiveness slightly. Choosing a method depends on personal preferences, lifestyle, and health considerations, and consulting with a healthcare provider can help determine the best option.