To insert a tampon, position it at a 45-degree angle, insert the tip fully, then push on the applicator. Choose a smaller tampon size if your period is light and a larger size if your period is heavy.

Tampons are one of the most popular menstruation products in a growing market that now includes period underwear, menstrual cups and more. They’ve been around since the 1930s and are still the go-to ...