This one is true! Using condoms is an effective way to protect against STIs, including HIV and unplanned pregnancy.
Long-acting reversible forms of contraception will protect against unplanned pregnancy, but not against STIs. External condoms are 98% effective when used properly. Whichever form of contraception you use, whether it is the pill, the injection or coil, it is important to protect yourself from STIs by using condoms.
Regular testing, being informed and being able to discuss safer sex also helps to manage STI transmission.