Do boys use tampons

Yes, some boys do use tampons.

Some boys are born with a uterus and a vagina so will menstruate just like girls - cis boys, in other Words boys who aren't born with a uterus and a vagina but have a penis instead, don't typically use tampons. Some boys may experiment with using tampons anally, but that's not healthy and nor is it particularly normal - if a boy wants to insert something anally they should use sex toys!

Tampons can also be used for bloody noses, they are the perfect size to put into the nostril to stop blood during a nose bleed - some boys will keep tampons if they play a lot of contact sports or suffer a lot of nose bleeds.

No, boys do not use tampons. Tampons are used by girls.