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Definition & Pronunciation

IPA:/ˈkɑːn.dəm/Phonetic Spelling:KAHN-duhm

Condom is a thin barrier used during sexual activity to reduce the chance of pregnancy and the transmission of many sexually transmitted infections, including HIV. A condom prevents semen and other genital fluids from passing directly between partners and reduces contact with covered skin and mucous tissue.

An external condom is placed over an erect penis. An internal condom is inserted into the vagina and may also be used for anal sex according to appropriate guidance. Condoms are most effective when used correctly from the beginning to the end of every sexual act.

Sexopedia Quick Reference

Condom

Also Known As: prophylactic, sheath

Grammar
Part of speech: nounForms:Singular: condom; Plural: condoms; Related phrases: external condom, internal condom, condom use
Synonyms
Barrier contraceptive, Prophylactic

Note: Prophylactic is a formal or older term. Barrier contraceptive describes the condom’s pregnancy-prevention function but does not fully express its role in reducing STI transmission.

Antonyms
Condomless sex, Unprotected intercourse

Note: Unprotected intercourse may be imprecise because a person might use another method of pregnancy or HIV prevention without using a condom.

Easy Explanation

A condom is a thin covering used as a barrier during sex.

An external condom fits over the penis. An internal condom is placed inside the vagina. Both are designed for one-time use.

Simple examples include:

  • A condom can help prevent pregnancy.
  • A condom can reduce the risk of many STIs.
  • The condom should be used before genital contact begins.
  • A new condom is needed for each sexual act.
  • The partners agreed to use a condom during intercourse.

Condoms reduce risk but do not eliminate every possibility of pregnancy or infection. Some infections, including herpes and human papillomavirus, may spread from skin that a condom does not cover.

Grammatical Formation and Usage

Condom is a countable noun:

  • She bought a condom.
  • He checked the condom package.
  • They carried several condoms.
  • The clinic provides free condoms.

English learners should use an article with the singular form:

  • Correct: Use a condom.
  • Correct: The condom broke.
  • Incorrect: Use condom.
  • Correct plural: They used condoms consistently.

Common Sentence Patterns

The word often appears in these expressions:

  • use a condom;
  • wear a condom;
  • put on a condom;
  • remove a condom;
  • change the condom;
  • condom broke;
  • condom slipped;
  • sex without a condom;
  • correct condom use;
  • condom-protected sex.

A person normally uses or wears a condom. The phrase put on a condom refers specifically to placing an external condom on the penis.

External Condoms

An external condom is a thin sheath rolled over an erect penis before vaginal, anal, or oral sex.

External condoms may be made from materials such as:

  • latex;
  • polyurethane;
  • polyisoprene;
  • natural membrane.

Latex and synthetic condoms can reduce pregnancy and STI risks when used correctly. Natural-membrane condoms may help prevent pregnancy but may not provide reliable protection from STIs, including HIV.

Internal Condoms

An internal condom is a pouch-shaped barrier placed inside the vagina before sex. It has an inner ring that helps with insertion and an outer ring that remains outside the body.

Internal condoms may also be used for anal sex under appropriate guidance. An external condom and an internal condom should not be used together because friction between them can contribute to slipping or tearing.

Examples:

  • She chose an internal condom for pregnancy prevention.
  • They did not use an external condom at the same time.
  • The internal condom was inserted before sexual activity began.

How an External Condom Is Used

General steps include:

  1. Check the expiration date and package for damage.
  2. Open the wrapper carefully without using teeth or sharp objects.
  3. Place the condom on the tip of the erect penis.
  4. Pinch the air from the tip and roll the condom down fully.
  5. Use suitable lubricant when needed.
  6. After ejaculation, hold the condom at the base while withdrawing.
  7. Remove it carefully and place it in the trash.

A condom should not be reused or flushed down a toilet.

Lubricants and Condom Materials

Lubricant can reduce uncomfortable friction and may help prevent a condom from slipping or tearing.

Water-based and silicone-based lubricants are generally compatible with latex condoms. Oil-based products can weaken latex and increase the chance of breakage.

Polyurethane condoms may be compatible with a wider range of lubricants, but users should always follow the instructions on the condom and lubricant packaging.

Condoms and Pregnancy Prevention

A condom acts as a contraceptive barrier by helping stop sperm from reaching the vagina and an egg.

It may be used alone or together with another compatible contraceptive method, such as:

  • a birth control pill;
  • an implant;
  • an intrauterine device;
  • an injection;
  • a patch;
  • a vaginal ring.

Other contraceptive methods may reduce pregnancy risk but usually do not protect against STIs. Condoms are the only contraceptive method designed to address both unintended pregnancy and most STI risks.

Condoms and STI Prevention

Correct and consistent condom use can reduce the transmission of infections spread through semen, vaginal fluids, blood, and covered genital contact.

These may include:

  • HIV;
  • chlamydia;
  • gonorrhea;
  • trichomoniasis;
  • hepatitis B in some circumstances;
  • syphilis when the infectious area is covered.

Protection may be lower for infections spread through sores or skin outside the condom-covered area. STI testing, vaccination, PrEP where appropriate, and communication with partners may provide additional protection.

Condom Failure

A condom may occasionally break, leak, or slip.

Possible contributing factors include:

  • using an expired condom;
  • damaging it while opening the wrapper;
  • incorrect size or placement;
  • insufficient lubrication;
  • using oil with latex;
  • using two condoms together;
  • reusing a condom.

After condom failure, people may consider emergency contraception, STI testing, or HIV post-exposure prophylaxis depending on the exposure. These options can be time-sensitive, so prompt professional advice may be important.

Consent and Condom Agreements

Agreement to sex is not automatically agreement to sex without a condom.

A person may consent only under the condition that a condom is used. Removing, damaging, or failing to use an agreed condom changes the conditions of consent.

Partners should discuss:

  • whether a condom will be used;
  • which type and material are acceptable;
  • who will provide it;
  • what lubricant will be used;
  • what to do if it breaks or slips;
  • whether a new condom is needed when changing activities.

Consent remains voluntary, specific, ongoing, and reversible.

Common Misunderstandings

Two condoms provide greater protection.
Using two external condoms or combining external and internal condoms can increase friction and damage.

Condoms prevent every STI.
They reduce many risks but may not cover all infectious skin or sores.

A condom is needed only before ejaculation.
It should be used from the beginning of sexual contact because infections and fluids may be transmitted earlier.

A condom can be washed and reused.
Every condom is intended for one-time use.

Other birth control makes condoms unnecessary.
Most other contraceptive methods do not reduce STI transmission.

Consent to intercourse allows removal of the condom.
Changing an agreed condom condition requires renewed consent.

Sample Sentences

  1. A condom is a barrier used to reduce pregnancy and STI risks.
  2. He checked the condom package before opening it.
  3. She asked her partner to use a condom from the beginning of intercourse.
  4. The condom was placed on the erect penis correctly.
  5. They used water-based lubricant with the latex condom.
  6. A new condom was used when they changed sexual activities.
  7. The condom slipped, so they stopped and replaced it.
  8. An internal condom should not be used with an external condom.
  9. Consent to sex depended on continued condom use.
  10. Correct condom use can reduce risk without removing it completely.

Connection to Sexuality

A condom is connected to sexuality because it can support safer vaginal, anal, and oral sexual activity while helping people manage pregnancy and STI risks.

Condoms may also influence sensation, comfort, trust, spontaneity, and communication between partners. Different sizes, materials, lubricants, and internal or external designs may help people find an option that feels suitable.

Healthy condom use includes selecting an appropriate product, following its instructions, using it consistently and correctly, respecting condom-related boundaries, and responding promptly if it breaks, leaks, or slips.