Sanitary napkins, also known as disposable menstrual underwear, are an absorbent material. The main material is cotton-like pulp and polymer absorbents, which are used to absorb menstrual blood flowing out of the vagina when women are menstruating. Sanitary napkins have poor air permeability and may be inconvenient to move.

   Tampon, also known as disposable menstrual underwear or tampon for short, is a cotton cylinder that can be placed in the vagina to absorb menstrual blood when women are menstruating. European and American women use it more. As Asians do not like suppositories, disposable menstrual underwear are rarely used by women in Asian countries. The material of the tampon is mainly made of cotton, man-made fiber or a mixture of these two materials, with a diameter of 1 cm to 1.9 cm, and a cotton thread (draw rope) attached to the end. The degree of arc of the tip of the tampons varies from brand to brand, allowing users to choose according to their own habits. There are often linear or diagonal indentations on the body of the tampon, which can increase the ability of the tampon to divert and fit the vaginal wall when it absorbs menstrual blood and expands. Since the tampon is built-in, it needs to be replaced in time, otherwise it will cause infection.

   Generally speaking, as long as the one that suits you is the best. Consumers can choose according to their own situation.