Sterilisation – Class 12 | Chapter – 4 | Biology Short Notes Series PDF
Sterilisation: Female sterilisation is an operation to permanently prevent pregnancy. The fallopian tubes are blocked or sealed to prevent the eggs reaching the sperm and becoming fertilised.
Facts about female sterilisation
- Female sterilisation is more than 99% effective at preventing pregnancy.
- You do not have to think about protecting yourself against pregnancy every time you have sex, so it does not interrupt your sex life.
- It does not affect your hormone levels and you’ll still have periods.
- You’ll need to use contraception up until you have the operation, and until your next period or for 3 months after the operation (depending on the type).
- As with any surgery, there’s a small risk of complications, such as internal bleeding, infection or damage to other organs.
- There’s a small risk that the operation will not work. Blocked tubes can rejoin immediately or years later.
- If the operation fails, this may increase the risk of a fertilised egg implanting outside the womb (ectopic pregnancy).
- It is very difficult to reverse, so you need to be sure it’s right for you.
- It does not protect against sexually transmitted infections (STIs), so you may need to use condoms as well.
How female sterilisation is carried out
- Applying clips – plastic or titanium clamps are closed over the fallopian tubes.
- Applying rings – a small loop of the fallopian tube is pulled through a silicone ring, then clamped shut.
- tying, cutting and removing a small piece of the fallopian tube.
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