contraception: non-hormonal methods

• concentration is the deliberate prevention of fertilisation. in other words,they prevent pregnancy
• contraception can use hormonal or non-hormonal methods
• non-hormonal methods are also called barrier methods as they prevent sperm from reaching the egg
• condoms and diaphgrams are examples of non-hormonal contraceptives.they can also be used together with a spermicidal agent to kill sperm
• there are no side effects of using barrier methods as they do not use hormones,however they do risk breaking during use
• only condoms can also protect against sexually transmitted disease (STDs)
• sterilisation is a surgical method that prevents eggs from reaching the uterus,or sperm from leaving the penis. sterilisation is very difficult to reverse and does not prevent against STDs