How To Put A Tampon On Dear BeingGirl Experts, I haven't used a tampon yet. I was wondering which opening it goes in? Layla --- Dear Layla, Understand you can’t put a tampon in any opening except the vagina where the tampon is designed to be inserted. Hopefully, this eases your stress level around learning to use a tampon. Now, let’s review the three openings at the base of the trunk of your body. The opening near the front of your body is the urethra, where urine (or pee) leaves the body. The middle opening is the vagina, which is hidden by the labia and can be partially covered by the hymen. There should be enough of an opening to allow the menstrual fluid to leave the body. This is the opening where the tampon is inserted when you are having your period. Once inserted correctly you won’t feel the tampon as it collects the menstrual flow before it leaves your body. And in the rear is the anus, where solid waste leaves the body. Check out http://www.beinggirl.com/article/how-to-use-a-tampon/ for the insertion details. Remembering to relax and allowing yourself plenty of time the first few times you use a tampon will help. Good luck! Your BeingGirl Experts Learn how to put a tampon on and get answers to period questions at BeingGirl.com.