How long can I leave a diaphragm in?

Sep 14, 2015 Updated: Aug 28, 2025

For the diaphragm to be effective, you need to leave it in for 6 hours after you have sex. It’s safe to leave your diaphragm in for up to 24 hours.

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Diaphragm
Pretty effective when used perfectly, can be put in hours before sex, and doesn't affect your hormones.