So I use tampons and what happens if they hurt when they are already in

A tampon shouldn't hurt once it is in, so if it hurts, it is often because it is not in far enough or is sitting at an awkward angle.

When a tampon is in the right spot, you really shouldn't feel it at all. The lower part of the vagina has lots of nerve endings, but the higher part doesn't. If you can feel it poking you, pinching, or making you uncomfortable when you walk or sit down, it probably stopped in that lower part instead of sliding all the way into the comfy zone.

What you can do right now

• Wash your hands and gently push it a little higher with a clean finger, or take it out by gently pulling the string at the same angle it went in, and try a fresh one.
• Relax your muscles. If you're tense, your pelvic muscles grip tight and make putting it in hurt.
• Angle it towards your lower back, not straight up. The vagina angles back towards your spine, so following that angle helps it slide into place smoothly.

Also, pads are just as good. Pick the lowest absorbency you need for your flow. Change a tampon every 4 to 6 hours and never leave one in for more than 8; empty a cup at least every 12 hours; wash your hands before and after. If, while using one or soon after, you get a fever or feel hot, cold or shivery, are sick or have diarrhoea, feel dizzy or faint, get muscle aches, get a rash that looks like sunburn or feels rough like sandpaper, or feel like you have flu, take it out, tell a grown-up straight away and say you were using one. If it hurts to put in, keeps hurting once it is in even after you try a fresh one, or won't go in after a few tries, tell a grown-up so a doctor can check. It can't get lost inside you, and if you can't get one out, a grown-up or a doctor can help.