All Contraceptives Can Provide Protection Against STIs!
STIs spread by sexual contact during intercourse from one infected person to the other. They spread through skin to skin contact with infected body fluids like semen, vaginal fluid, blood, etc. So, the best way to prevent STIs is abstinence or using barrier contraceptives like condoms, as these prevent the skin to skin contact of the genitals.
STD Prevention Beyond Condoms – YouTube