Contraception for Teenagers contraception method | Page 17

Advantages

Disadvantages

• You only need to think about the injection every three
months

• The injection can cause some side effects like weight
gain

• When topped up regularly, the injection is more than
99% effective

• It needs to be administered in a clinical setting. You
cannot do it yourself.

• It can be useful for women who cannot have oestrogen
• There's evidence that this injection can protect against
certain cancers

• It can take up to a year to regain fertility
• If you forget to get it topped up, you can become pregnant

• It is not affected by medication
• The injection does not protect against diseases
(Nhs.uk 2016)