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Dr. Chrysoula I. Liakou MD, PhD
- Treated online: Condoms need no prescription; the online consultation covers emergency contraception after a failure, infection testing and treatment, latex allergy and adding a second method, with any prescription sent to a pharmacy near you.
- What they are: a barrier method: an external condom of latex or polyurethane worn on the penis, or an internal condom of nitrile worn inside the vagina; the only contraceptive that also protects against sexually transmitted infections.
- Effectiveness: external condoms are 98% effective with perfect use and about 87% as commonly used; internal condoms 95% and about 79%; the gap is almost entirely technique, fit and consistency.
- Lubricants: oil-based lubricants such as baby oil and petroleum jelly weaken latex fast; water-based and silicone lubricants are safe with every condom.
- After a failure: emergency contraception works best the sooner it is taken and can be used up to 5 days after sex depending on the type; the copper coil is the most effective option and also provides ongoing contraception.
- Emergency: call 112 immediately if condom use triggers signs of a severe allergic reaction: swelling of the face, lips or throat, difficulty breathing, or feeling faint.
If a condom broke or slipped and pregnancy is possible, act today, not next week: emergency contraception works best the sooner it is taken, and depending on the type it can be used up to five days after sex.[2] In many EU countries the pills are available directly from a pharmacy. If you have been sexually assaulted, please seek in-person care urgently; emergency departments and national support services can help with medical care, emergency contraception and evidence, and you will be believed.
Do you need a prescription for condoms?
No. Condoms are sold without a prescription in pharmacies, supermarkets and online across Europe, and no consultation is needed to buy or use them. A doctor becomes useful around condoms: after one breaks or slips, when emergency contraception or infection testing is on your mind, or when you want a second method alongside them.
How an online consultation helps with condoms
- Straight answers after a failure: You can see a doctor over video, usually within 15 minutes. The doctor talks through what actually happened, whether emergency contraception makes sense, which type fits your timing, and how to get it where you are.
- An infection risk assessment, not guesswork: The doctor maps what you were exposed to, which tests are worth doing and when, because testing too early gives false reassurance.
- Latex allergy solved properly: Genuine latex allergy is uncommon but real; the doctor helps separate irritation from allergy and points you to non-latex materials that work.
- A belt-and-braces plan: Many couples pair condoms with a hormonal method: condoms for infection protection, the second method for pregnancy protection. The doctor screens you for that second method in the same call.
How effective are condoms?
Male (external) condoms are 98% effective at preventing pregnancy with perfect use, and around 87% effective as commonly used, according to WHO figures.[1] The gap between those numbers is not the rubber failing; it is human use: late application, oil-based lubricant, poor storage and occasional non-use. Condoms do not require medical screening, work on demand, and have no hormonal side effects.
Why real-world use decides the number you get
Perfect use means a condom on before any genital contact, every single time, with space pinched at the tip, removed carefully while holding the base. Typical use includes the nights it went on late, the one that tore because a wrapper was opened with teeth, and the one that had lived in a wallet through a summer. Each of those moves you from the 98% column towards the 87% column. None of this is a reason to abandon condoms; it is a reason to use them well, and to know in advance what to do when one fails, because with typical use, failures are a matter of when, not if.
The one job only condoms do
No other everyday contraceptive protects against sexually transmitted infections.[5] Used consistently, condoms substantially reduce transmission of chlamydia, gonorrhoea and HIV, which remain common across Europe.[4] The protection is strong but not absolute: infections spread by skin contact beyond the covered area, such as herpes and HPV, are only partly prevented. That is why a new relationship conversation about testing is worth having even for consistent condom users, and the doctors can assess symptoms and arrange a sensible testing plan for sexually transmitted infections online.
What about internal (female) condoms?
The internal condom, often called the female condom, is a soft pouch placed inside the vagina before sex, with a flexible inner ring holding it in place and an outer ring resting outside the body. With perfect use it is 90% effective against pregnancy, and around 79% effective as commonly used, WHO figures again.[1] It also protects against sexually transmitted infections, covering slightly more external skin than a male condom does.
Internal condoms have practical advantages that never made them famous: most are made of nitrile or polyurethane rather than latex, so they suit latex-allergic couples and tolerate any lubricant; they can be inserted up to a few hours before sex, removing the in-the-moment interruption; and they put the protection decision in the hands of the partner wearing it. The honest drawbacks: they cost more, fewer shops stock them (larger pharmacies and online retailers are the reliable sources across Europe), and the first few uses feel unfamiliar. Two rules matter: guide the penis inside the outer ring rather than beside it, and never combine an internal condom with an external one, because the friction between them makes both more likely to tear.[3]
Which condom situation is which?
This is the decision framework the doctors use for condom-related consultations:
Swipe sideways to compare →
| Presentation | Likely first step | Suitable for online care? | When referral or in-person care is needed |
|---|---|---|---|
| Condom broke or slipped, pregnancy possible | Emergency contraception discussion, promptly: which type, how fast, where to get it[2] | Yes, promptly | If a copper IUD is the best option, fitting is arranged in person within five days |
| Condom failure with a new or untested partner | Infection risk assessment and a timed testing plan | Yes | Symptoms such as pelvic pain or fever, or possible high-risk HIV exposure, need urgent in-person assessment |
| Condoms keep breaking or slipping | Technique, size, material and lubricant review; consider adding a second method | Yes | Rarely needed |
| Itching, burning or swelling after condom use | Distinguish irritation from latex allergy; switch material, review lubricants and spermicides | Usually yes | Severe reactions with breathing difficulty or facial swelling: call 112 |
| Wants pregnancy protection stronger than condoms alone | Suitability screening for the pill, patch or ring in the same consultation | Yes | Implant and IUD fittings are in-person procedures; the doctor refers you |
A condom failed and you are not sure what happens next? A doctor can tell you in one consultation.
See available times →What the doctor checks in an online condom and contraception consultation
The consultation is structured around what actually changes the advice. The doctor will typically check:
- Exactly what happened and when: a condom that broke during sex, one that slipped off, or one put on late carry different risks, and the hours since it happened decide which emergency contraception options are still on the table.[2]
- Where you are in your cycle: pregnancy risk is not equal across the month, but no day is zero; the doctor weighs timing honestly rather than talking you out of emergency contraception.
- Which emergency contraception fits: levonorgestrel is used within three days of sex, ulipristal within five, and both work better the sooner they are taken; a copper IUD, fitted in person, is the most effective option of all.[2]
- Medicines and body weight: some epilepsy and TB medicines, and St John's Wort, reduce how well emergency contraceptive pills work, and the doctor factors this in when recommending a type.[3]
- Infection exposure: partner history, the type of contact, any symptoms, and the right window for testing, because chlamydia and gonorrhoea tests are most reliable two weeks after exposure and HIV tests later still.
- Reaction history: where and when itching or swelling appears, to separate lubricant or spermicide irritation from true latex allergy.
- Whether condoms alone are enough for you: if a pregnancy would be unwelcome news, the doctor screens you for a hormonal method to run alongside them, such as the combined pill.
Choosing and using condoms well
Fit and material
A condom that hurts, slips or feels numb is usually the wrong size, not the wrong method: nominal width varies between brands, and trying two or three widths solves most problems. Standard condoms are latex; polyurethane and polyisoprene versions exist for latex allergy and feel slightly different but protect comparably when used correctly. Buy CE-marked condoms from pharmacies or reputable shops, check the expiry date, and store them somewhere cool and flat; wallets, cars and back pockets shorten their life.
The mistakes that cause most failures
The classic errors are well documented and worth listing plainly:[3]
- Putting the condom on after genital contact has already started, or taking it off before sex ends.
- Not pinching the air out of the tip, which leaves a bubble that bursts under pressure.
- Using oil-based lubricants (baby oil, massage oil, petroleum jelly, some creams) with latex condoms; oils quickly weaken latex. Water-based and silicone lubricants are safe with every material.
- Opening the wrapper with teeth or scissors, or unrolling the condom before putting it on.
- Wearing two condoms at once, or an internal and external condom together: friction makes tearing more likely, not less.
- Not holding the base on withdrawal, which is how most slip-offs happen.
Vaginal medicines deserve a mention of their own: some pessaries and creams for thrush and other conditions can weaken latex, so check the leaflet of anything you use internally, or ask the doctor during your consultation.
Treatment options
What you can do yourself
Buy CE-marked condoms in a size and material that suit you, keep a water-based or silicone lubricant with them, and check dates before use. If a condom fails, do not douche or scrub; it does not reduce pregnancy or infection risk and can irritate. Move quickly instead: emergency contraceptive pills are often available from a pharmacy without a prescription, and sooner genuinely is better.[2] Then book a consultation if you want the infection side assessed, a testing plan, or a longer-term method.
Prescription treatment
A prescription is never issued without a consultation. After a video assessment the doctor may prescribe emergency contraception, treat confirmed infections, and start you on a regular hormonal method, the pill, patch or ring, after proper safety screening. Antibiotics are prescribed only when there are signs of a bacterial infection; they do nothing for viruses and are never given just in case. Where the best next step is in person, such as a copper IUD fitting within five days of unprotected sex, the doctor says so and directs you to the fastest local route.
When condom problems are handled online, and when you need in-person care
Handled online: emergency contraception advice and prescriptions after condom failure; infection risk assessment with a timed testing plan; latex allergy and irritation troubleshooting; technique, size and lubricant reviews when condoms keep failing; and screening and prescribing when you want a hormonal method such as the progestogen-only pill running alongside condoms.
In-person care: copper IUD as emergency contraception, and implant or IUD fittings generally, are in-person procedures, and the doctor points you to local services with the five-day clock in mind; symptoms suggesting pelvic inflammatory disease (pelvic pain, fever, unusual discharge) need in-person examination; possible high-risk HIV exposure needs urgent in-person assessment, because post-exposure medication is time-critical and hospital-initiated; and after sexual assault, in-person care comes first, always.
When to get in-person care
Call 112 immediately if condom use triggers signs of a severe allergic reaction: swelling of the face, lips or throat, difficulty breathing, or feeling faint. Get urgent in-person care for a retained condom you cannot remove, severe pelvic pain or heavy unexpected bleeding after sex, possible high-risk HIV exposure, or after sexual assault.
How Mobi Doctor works
- Book a time that suits you: open daily 7am–11pm CET. You can see a doctor over video, usually within 15 minutes. No subscription, exact price up front.
- Speak to a licensed doctor about condoms: a private video call: you describe what you feel, the doctor asks what matters, and you agree the right plan together.
- Leave with a clear plan: if the doctor prescribes, you can use the prescription at a pharmacy near you; if your doctor decides you need to be seen in person, you get a full refund.
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Talk through contraception options with a doctor
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See available times →Noticed a new symptom when using condoms? Tick every symptom you have to see each condition page that mentions it. It finds the right page, not a diagnosis: a doctor gives you that on a video call.
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Not sure this is the right page? Look up any symptom in the full symptom checker, or book and describe it to a doctor.
Frequently asked questions about condoms
What are condoms, and how do they work?
Condoms are a barrier method of contraception. An external condom is a thin sheath of latex, polyurethane or polyisoprene worn on the erect penis; an internal condom is a soft nitrile pouch worn inside the vagina. Both stop sperm reaching an egg by catching semen, and because they also block the exchange of fluids they are the only contraceptive that protects against most sexually transmitted infections.
How effective are condoms really?
External condoms are 98% effective with perfect use and around 87% as commonly used; internal condoms are 95% and around 79% respectively, according to WHO figures. The difference is almost entirely down to how they are used, so technique, fit and using one every time matter more than the brand. Combining condoms with a hormonal method or the coil brings pregnancy protection close to 100%.
Do I need to see a doctor to get condoms?
No. Condoms are sold without a prescription in pharmacies, supermarkets and online across Europe, at any age, and many sexual health services give them away. A doctor is useful for what surrounds condoms: emergency contraception after a failure, infection testing, allergy problems, or adding a hormonal method alongside them for extra pregnancy protection.
A condom broke or slipped. What should I do?
If a condom broke or slipped and pregnancy is possible, act within hours rather than days: emergency contraception works best the sooner it is taken and can be used up to five days after sex depending on the type; the pills are often available directly from a pharmacy, and a copper coil fitted within five days is the most effective option. Book a consultation to plan emergency contraception and infection testing about two weeks later.
Do condoms protect against all STIs?
No. Condoms substantially reduce the risk of infections carried in fluids, such as chlamydia, gonorrhoea, trichomonas and HIV, but only partly protect against infections spread by skin contact beyond the covered area, such as herpes, HPV and syphilis sores. Condoms plus sensible testing, vaccination against HPV and hepatitis B, and prompt treatment of symptoms give the best protection.
How do I use a condom correctly?
Check the date and the CE mark, open the packet without teeth or nails, put the condom on the erect penis before any genital contact, pinch the tip to leave space and squeeze out air, roll it to the base, use only water-based or silicone lubricant, hold the rim while withdrawing straight after ejaculation, and never reuse one. Most condom failures come from late application, trapped air, oil-based lubricant or the wrong size.
Does condom size matter?
Yes. A condom that is too tight is more likely to break and a loose one to slip, and both discourage consistent use. Condoms come in a range of widths (the nominal width printed on the box), so measure girth and try a few; a snug but comfortable fit that stays put is right. Fit problems are one of the commonest reasons condoms fail, and they are easily fixed.
What are internal (female) condoms?
Internal condoms are a soft nitrile or polyurethane pouch worn inside the vagina, with an outer ring resting outside the body. They can be inserted up to a few hours before sex, suit people with latex allergy, work with any lubricant, and protect against sexually transmitted infections as well as pregnancy, at 95% effectiveness with perfect use.
Is wearing two condoms safer?
No. Two external condoms, or an internal and external condom together, rub against each other and are more likely to tear than one used properly. One condom, the right size, with the air pinched out of the tip and water-based or silicone lubricant, is the safe combination; for extra pregnancy protection, add a hormonal method rather than a second condom.
Which lubricants are safe with condoms?
Water-based and silicone-based lubricants are safe with every condom material. Oil-based products, including baby oil, massage oil, coconut oil and petroleum jelly, quickly weaken latex and cause failures. Some vaginal creams and pessaries also affect latex, so check the leaflet of anything used in the vagina and use polyurethane condoms while treating a vaginal infection.
What if I am allergic to latex condoms?
Itching, burning, redness or swelling after sex can be latex allergy, though vaginal infections and lubricant ingredients cause similar symptoms. Polyurethane, polyisoprene and nitrile condoms are latex-free and just as effective. Swelling of the face or throat, wheeze or faintness after exposure is anaphylaxis: call 112. The doctor can confirm the allergy and treat the symptoms.
Do condoms expire, and how should I store them?
Yes. Condoms carry an expiry date, usually three to five years from manufacture, after which the material weakens and breaks more easily. Store them somewhere cool and dry, not in a wallet, car or direct sunlight for long periods, and discard any that are brittle, sticky, discoloured or in a damaged packet. Check the date every time; it takes a second.
- Family planning/contraception methods: fact sheet, WHO, World Health Organization, 2023.
- Emergency contraception: fact sheet, WHO, World Health Organization, 2021.
- Contraception: barrier methods and spermicides, Clinical Knowledge Summary, NICE, National Institute for Health and Care Excellence, accessed August 2026.
- Sexually transmitted infections: surveillance and disease data, ECDC, European Centre for Disease Prevention and Control, accessed August 2026.
- Condoms: fact sheet, WHO, World Health Organization, 2025.
- Condoms, NHS, National Health Service (UK), accessed October 2026.
This page is for information only and is not a substitute for a medical consultation. Guideline links are provided for transparency; treatment decisions are made with your doctor.
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