Diaphragm

Effectiveness: 71-94%

Non-latex devices used with spermicidal jelly and inserted into the vagina to cover the cervix before sex. These reusable methods cans be used for up to two years.

 
Availability: Prescription only. The user is fitted at the clinic to ensure that the devise is the right size based on the size and shape of their body and whether or not they have ever been pregnant or had a child.
 
Cause of Failures:
  • Not using these devices with spermicide
  • Not inserting a device before the start of intercourse
  • Device gets dislodged during intercourse
  • Using the wrong size
  • Using a device for more than 2 years without having it refitted
 
STI Prevention: None
 

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