White milky bump on inside of male anus with picture

Waxing my boyfriends buttcrack (lol) and noticed this bump in his hole? Hemorrhoid? HPV? It's not bothering him.

Couldn't post a picture!

This should help you add images:

https://patient.uservoice.com/knowledgebase/articles/402861-how-do-i-add-an-image-to-my-post

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