A 13 year old can wear tampons.
There's no minimum age for a girl or woman to wear tampons other than having started your period.
If the 13 year old has started her period, she can wear tampons.
Many girls start using tampons around the age of 13 for comfort, sports and swimming as long as they know how to insert the tampons correctly and change the tampons regularly.
As a 13 year old, the 13 year old should start with light or slim tampons and use the smallest and most comfortable tampon and least absorbent tampon available to make inserting of the tampon easier.
The 13 year old should also use plastic applications, which are often smoother and easier for beginners to insert than cardboard or no applicator tampons.
If the tampon is not inserted correctly, it could cause pain, irritation and may get lost inside the body.
If the tampon is inserted correctly, the tampon should not be felt and it cannot get lost inside the body.
Tampons should also be changed every 4 hours to 6 hours to prevent leakage and reduce the risk of Toxic Shock Syndrome or TSS.
It's also easier to insert a tampon when the flow is moderate than on very light days.
You can also use pads for backup as it's normal to have some trial and error when using tampons.
So using a liner or pad can help with confidence.
It can take some practice to get comfortable with the process of inserting the tampon.
So practice can help the teen learn how to easily insert the tampon.