Why do women wear sanitary pads in their underwear?

Sanitary pads are worn in underwear to absorb menstrual flow and provide protection against leaks. During menstruation, the lining of the uterus sheds and is expelled through the vagina. Sanitary pads are designed to absorb this flow and keep the wearer clean and comfortable. They are typically made of a soft, absorbent material and have a sticky strip that helps to keep them in place. Some sanitary pads also have wings that provide extra protection against leaks.

Sanitary pads are available in a variety of sizes and absorbencies to meet the needs of different women. They can be purchased at most drugstores and grocery stores.