This handy list of myths and facts about tampons can help ease any fears your tween might have about using tampons:
Myth: Virgins cannot wear tampons
Many people believe that using a tampon means you aren’t a virgin anymore. So, is this true? The short answer is no.
A virgin is someone who has never had sexual intercourse. Using a tampon, does not result in the loss of virginity. Many cultures believe that a broken hymen means a girl no longer has her virginity. The fact is a hymen can be broken in any number of ways and not just from sexual intercourse. However, the hymen can also remain intact even if intercourse has occurred.
When a tampon is inserted, the gap in the hymen will stretch to accommodate it. A young girl can begin using tampons any time she feels comfortable and ready to. 
Myth: Tampons offer 8 hour protection
Many tampons will claim to offer ‘up to 8 hours protection’, however the reality is that tampons can only work as long as they can absorb blood. During the first few days where the flow is heavier, tampons may only last one or two hours whereas lighter days tampons will last longer.
Myth: You cannot sleep in tampons
This is definitely a myth. Tampons are safe to sleep providing they are used correctly. At night, while you sleep the flow tends to be lighter so the tampon should comfortably last eight hours. However, lots of teens prefer to wear a sanitary towel instead of a tampon as they find it more comfortable.
Myth:Tampons can get lost inside you if you push them in too far
No, the opening at the end of your vagina is much too small for a tampon to fit through. To safely remove the tampon, you simply pull on the string.