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GCSE Biology · key term
A device placed in the uterus to prevent pregnancy; different types may act without hormones or release a hormone.
Used by AQA
Specification 4.5.3.5 · Paper 2
Revise: Contraception MethodsSome intrauterine devices release a hormone instead. Hormonal methods can be highly effective, but they do not protect against sexually transmitted infections (STIs). The pill must be taken as directed, and missed doses or illness that prevents it being absorbed can reduce its effectiveness.
Do not describe every non-hormonal method as a barrier. Spermicides, fertility-awareness methods, intrauterine devices and sterilisation work in different ways.
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