1. METHODS OF CONTRACEPTION
Human reproduction
METHODS OF CONTRACEPTION
Biology and Geology 3. Secondary Education 1

2. Methods of contraception
BARRIER METHODS
• The most frequently used are the condom and the diaphragm. They prevent contact between the sperm and the egg. To be effective, they must be put on properly before sexual intercourse takes place.
The condom is the best way to prevent the transmission of sexually-transmitted diseases (STDs).
Diaphragm
Biology and Geology 3. Secondary Education

3. Methods of contraception
MECHANICAL METHODS
Such as the intrauterine device or IUD, for example. It is normally a T-shaped device which a doctor fits in the uterus. It affects implantation and the mobility and viability of the spermatozoa.
IUD
Biology and Geology 3. Secondary Education

4. Methods of contraception
SURGICAL METHODS
These methods are usually irreversible, and consist of cutting the Fallopian tubes, in the case of tubal ligation, or the vas deferens in the case of vasectomy.
Vasectomy
Tubal ligation
Biology and Geology 3. Secondary Education