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Safe Sex and How to Practice It

Written by healthwords.ai's team of doctors and pharmacists based in UK | Updated: 04 Jul 2025 | 4 min read

Safe sex means using ways to protect yourself and your partner from getting sexually transmitted infections (STIs) and from having an unplanned pregnancy. It’s not just about physical safety—it’s also about respecting each other and having open, honest talks with your partner. Practicing safe sex helps people make good choices for their health and their feelings.

Why is safe sex important?

Stops the Spread of STIs

STIs are infections you can get from sexual contact. Some common STIs are chlamydia, gonorrhea, HPV, herpes, and HIV. Millions of people get new STIs every year. Some STIs can cause serious health problems, like not being able to have children or having long-term pain. Using safe sex methods, like condoms, helps stop the spread of these infections.

Prevents Unplanned Pregnancy

Safe sex also helps people avoid pregnancies they aren’t ready for. There are many ways to prevent pregnancy, like condoms, birth control pills, patches, and IUDs (small devices a doctor puts in the uterus). Each method works differently, so it’s important to pick what’s best for you and talk to a doctor if you need help.

Builds Trust and Good Communication

Safe sex is also about talking openly with your partner. When you talk about your feelings, what you’re comfortable with, and how to stay safe, you build trust and make your relationship stronger.

How to practice safe sex

Using Condoms and Barriers

Condoms and dental dams are important tools. They stop body fluids from mixing, which helps prevent STIs and pregnancy.
How to use a male condom:

  • Check the expiration date and package.

  • Open carefully—don’t use anything sharp.

  • Pinch the tip and roll it down the penis.

  • After sex, hold the condom at the base and pull out.

How to use a female condom:

  • Squeeze the inner ring and push it into the vagina.

  • The outer ring stays outside to cover the opening.

Don’t Make These Mistakes:

  • Don’t use oil-based products (like lotion) with latex condoms—they can break.

  • Never reuse condoms.

  • Don’t keep condoms in places like wallets for a long time—they can get damaged.

Other Birth Control Methods:

Besides condoms, there are pills, patches, IUDs, and implants. Each works in a different way. Talk to a doctor to find out which is best for you.

Getting Tested for STIs

  • Get tested for STIs at least once a year if you are sexually active.

  • Get tested more often if you have new partners or don’t use protection.

  • You can get tested at clinics, doctors’ offices, or even at home with special kits.

  • Be honest with your partner about your STI status. This helps keep both of you safe.

Understanding consent

Consent means everyone agrees to what is happening. It should be clear, enthusiastic, and can be taken back at any time.
How to practice consent:

  • Ask your partner, “Are you okay with this?”

  • Watch for signs that your partner is comfortable.

  • Stop if anyone feels unsure or says no.

Other safe sex tips

  • Oral and Anal Sex:
    Use condoms or dental dams during oral and anal sex to lower the risk of STIs.

  • Lubricants:
    Use water-based or silicone-based lubricants with condoms to prevent breaking.

  • Sex Toys:
    Use condoms on sex toys, especially if sharing. Clean toys after every use.

  • Hygiene:
    Wash hands and private parts after sex. Go to the bathroom after sex to help prevent infections.

Emotional Safety

  • Talk openly with your partner about what you want and don’t want.

  • Set clear boundaries and stick to them.

  • If you ever feel pressured, say no and remove yourself from the situation if needed.

  • Remember, you can always talk to a trusted adult or counselor if you need help.

Safe Sex for Teens and Adults

  • Teens and Young Adults:
    Learn about safe sex before becoming sexually active. Always use protection and talk openly with partners.

  • Adults and Long-Term Partners:
    Even in long relationships, keep getting tested and talk about birth control needs. Communication is key.

Safe sex keeps you healthy and helps you feel good about your choices. It’s about protecting your body and your feelings, building trust, and making sure everyone feels respected. If you want to learn more, talk to a doctor or look for trusted health websites.

This article has been written by UK-based doctors and pharmacists, so some advice may not apply to US users and some suggested treatments may not be available. For more information, please see our T&Cs.