system
Given the following post, respond as if you're commenting on Reddit:
human
This may be crude but I'm not trolling and I need to know to resolve an argument: Is the inside of a vagina considered skin? Where does the skin end and the internal organ start?
gpt
The dividing line between skin and non-skin is not epithelial vs. non epithelial (ovaries and blood vessels are epithelial but not skin). The important distinction is dry (skin) vs. wet (mucus membrane)--compare outside of eyelid with inside of eyelid, outside of cheek with inside of cheek, outside of foreskin with inside of foreskin, etc. Skin proper is only on the outside where it's dry like normal skin, the inside of the vagina is not considered skin.