---
title: How come many of the evidence-based programs don’t include basic reproductive anatomy and physiology? Can I add lessons on these topics?
description: Most evidence-based programs (EBPs) assume that youth in the program have already had basic instruction about the reproductive systems.
---

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# How come many of the evidence-based programs don’t include basic reproductive anatomy and physiology? Can I add lessons on these topics?

## Most evidence-based programs (EBPs) assume that youth in the program have already had basic instruction about the reproductive systems.

If this is not the case for your population, you may need to provide this information BEFORE you implement the intervention. Adding these lessons as part of the intervention would be a yellow-light adaptation and is not recommended.

ETR offers a supplement to our EBPs on [*The Basics of Reproductive Health*](https://www.etr.org/store/product/the-basics-of-reproductive-health-book/) that offers a flexible set of lessons to provide this instruction. Again, it is very important that any additional lessons on the reproductive systems be taught BEFORE implementing any of the EBP sessions. 

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