Barrier methods
Barrier Methods
Barrier methods (/bæriər/ /ˈmeθədz/), derived from the English words 'barrier' (from the late Latin 'barraria', meaning 'barrier, barricade') and 'methods' (from the Latin 'methodus', meaning 'pursuit of knowledge, investigation, mode of prosecuting such inquiry, system'), are types of contraceptive methods that work by physically preventing sperm from reaching the egg.
Types of Barrier Methods
There are several types of barrier methods, including:
- Condoms - These are thin sheaths, usually made of latex or polyurethane, that are worn on the penis during sexual intercourse. They prevent pregnancy by stopping sperm from meeting an egg.
- Diaphragms - These are shallow, dome-shaped cups made of silicone. They are inserted into the vagina before sex to cover the cervix and prevent sperm from reaching an egg.
- Cervical Caps - Similar to diaphragms, these are smaller and made of silicone. They are inserted into the vagina before sex to cover the cervix and prevent sperm from reaching an egg.
- Contraceptive Sponge - This is a small, round sponge made from soft, squishy plastic. It is inserted into the vagina before sex. It covers the cervix and contains spermicide to help prevent pregnancy.
Effectiveness of Barrier Methods
The effectiveness of barrier methods depends on how correctly and consistently they are used. When used perfectly, they can be up to 98% effective. However, with typical use, their effectiveness can drop to around 85%.
Advantages and Disadvantages
Barrier methods have several advantages, including being non-hormonal, reversible, and offering protection against some sexually transmitted infections (STIs). However, they also have disadvantages, such as requiring correct and consistent use, potential for allergic reactions, and not offering protection against all STIs.
Related Terms
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