Contraception: Sterilisation

Contraception: Sterilisation

Black couple. Image credit blackcouplegetaways.com

Black couple. Image credit blackcouplegetaways.com

ZIMSEC O Level Combined Science Notes:Contraception:Ways to prevent pregnancy

How it works

  • Can be done in both men and women
  • In men it is known as a vasectomy
    • Sperm duct is cut and tied
    • During sexual intercourse ejaculated fluid contains no sperm
  • In Women there are two types of sterilisation:
    1. Tubal Ligation-tubes from the ovary are cut and tied to prevent ova from reaching the sperm
    2. Tubal Occlusion-clips are clamped on to the tubes to prevent ova from reaching sperm

Effectiveness

  • 99.9% for vasectomy
  • 99.4-99.8% female sterilisation

Advantages

  • It’s permanent and effective
  • Safe and simple operation
  • Vasectomy is usually an outpatients procedure
  • Female sterilisation is done using a local anaesthetic making it easy and less risky
  • There is no effect on sexual desire/performance
  • No effect on the menstrual cycle

Disadvantages

  • Permanent method/ not reversible
  • There are risks associated with operations
  • Vasectomy is not effective immediately

Side effects

  • Can result in psychological trauma if one has a change of heart.

To access more topics go to the Combined Science Notes page

By |2017-01-17T11:11:23+00:00September 6th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|Comments Off on Contraception: Sterilisation

About the Author:

He holds an Honours in Accountancy degree from the University of Zimbabwe. He is passionate about technology and its practical application in today's world.
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