Penis in male or cervix and vagina in female. Barrier Methods These methods prevent the contact of sperm and ovum with the help of barriers. Such methods are $(i)$ Condoms are the barriers made of thin rubber/latex sheath used to cover the penis in the male or vagina and cervix in female. It prevents the deposition of the ejaculated semen into the vagina of the female. $(ii)$ Diaphragms, cervical cap and vaults are the barriers made of rubber that are inserted into the female reproductive tract to cover the cervix during coitus. $(iii)$ Spermicidal creams, jellies and foams are used along with these barriers to increase their contraceptive efficiency