The IUD is 99% effective. It doesn’t protect you from STDs. Use a condom with your IUD to help stop pregnancy and STDs.
Spermicide is 71% effective. It doesn’t protect you from STDs. Use a condom with it to help stop pregnancy and STDs.
Sterilization is 99% effective. It doesn’t protect you from STDs. Use a condom to help stop STDs.
Vasectomy is 99% effective. It won’t protect you from STDs. Use a condom to help stop STDs.
Abstinence is 100% effective. It also protects you from STDs.