A tampon is a menstrual product designed to absorb blood and vaginal secretions by insertion into the vagina during menstruation. Tampons are one method of absorbing menstrual flow during your period. They are made of cotton and come in different sizes or absorbencies, such as light, regular, and super. Tampons can be inserted into the vagina with or without an applicator. Some tampons come with applicators, which are plastic or cardboard tubes that help put the tampon in place. Other tampons can be put in using your fingers. Tampons have a string attached to the end, so you can easily pull them out.

Tampons are regulated by the U.S. Food and Drug Administration (FDA) as medical devices. Tampons cleared by the FDA are meant to be used one time and then thrown away. No tampon should be used more than once. It is important to use tampons only when you have your period and change each tampon every 4 to 8 hours. Never wear a single tampon for more than 8 hours at a time. Using the lowest absorbency tampon needed can reduce the risk of toxic shock syndrome (TSS) .

In addition to tampons, there are other menstrual products available, such as pads, period underwear, and menstrual cups. Pads are worn in your underwear, and you can wear period underwear instead of regular underwear on the days you have your period. Menstrual cups are also inserted into the vagina, but they collect menstrual blood instead of absorbing it. Reusable protection, like menstrual cups, period underwear, or fabric pads, can save money and are better for the environment.