Can I Still Have Sex With Heart Failure?

Written by Dr Jodie-Ann Senior, Cardiologist and Heart Failure Specialist

I’d be lying if I said this was one of the most common questions I hear in clinic — but honestly, this is one question that rates high in importance for the quality of anyone’s life. Most patients think it. Very few say it. And fewer still get a proper answer from their doctor.

This article is the answer I want every heart failure patient to have. It is not a simple yes or no, because the honest answer depends on where your heart failure sits right now. But by the end of this article, you will know what questions to ask, what your medications mean for this, and what to watch out for.

▶Prefer to watch? I have also covered this topic in a short video on my YouTube channel: [VIDEO LINK HERE - https://youtu.be/sRJHS8nL4HA ]. This article goes deeper — particularly on medications, arrhythmia risk, and ICD patients — and includes a checklist for your next appointment.

1. You are not alone in wondering this

From a patient I see in clinic —

“My husband had a heart attack last year and was then diagnosed with heart failure. He’s been on all these medications, and we just… haven’t talked about it. Neither of us wants to be the one to bring it up. I think we are just too afraid of what the answer is going to be. And his cardiologist never mentioned it.”

This couple’s experience is not unusual. Research tells us that more than half of heart failure patients report a significant decrease or total cessation of sexual activity after their diagnosis — not because their doctor said it was unsafe, but because nobody said anything at all. [1]

More than four in ten patients say they needed information about sexual activity and never received it. [1] One in three reported that their doctor never brought it up.

That silence has real consequences. It creates fear where there may not need to be fear. It removes something that matters deeply to people’s sense of themselves and their relationships. And for many patients, the anxiety and tension about whether sex is safe becomes more limiting than any type of physical constraint.

So let us talk about it properly. And honestly.

2. The honest answer — and why it is not one-size-fits-all

For most people with stable, compensated heart failure, sexual activity is safe. But the answer genuinely depends on where your heart failure sits right now — and your cardiologist is the right person to help you know that.

Here is how cardiologists think about the physical demand of sexual activity. We use a measure called METs — metabolic equivalents — to describe how much physical effort different activities require. Sexual activity, at its peak, requires roughly two to three METs. [2] To put that in everyday terms: it is approximately the same effort as walking up two flights of stairs, or taking a brisk walk around the block.

This is an important reference point. If you can climb two flights of stairs without severe breathlessness, significant chest pain, or needing to stop — your body is likely managing a comparable level of exertion already. For stable heart failure patients, the evidence broadly supports that sexual activity at this level of demand is safe. [2, 3]

A note on risk statistics you may have read elsewhere

Some sources quote a figure showing that sexual activity increases a cardiac patient’s annual heart attack risk from 1% to 1.01%. While this figure is cited in cardiology literature, it comes from studies conducted primarily in people with coronary artery disease (angina and heart attacks) — not heart failure specifically. [3] For people living with heart failure, the risks to consider are different: they relate to the demand placed on a heart muscle that is already working harder than it should, and — in some patients with structural heart disease — to the risk of arrhythmia (heart rhythm disturbance). These risks are real, manageable, and the reason why knowing your NYHA class and discussing this with your cardiologist matters. They are not a reason to avoid the question.

If your heart failure is stable and well-controlled (NYHA Class I–II)

If your symptoms are mild or well-controlled day to day, your fluid is well managed, and you are on your medications consistently — you are likely in a position where sexual activity is safe. This applies to most people with NYHA Class I and II heart failure. The two-flights-of-stairs test is a reasonable self-assessment, and your cardiologist can confirm your position at your next appointment.

If your symptoms are more significant (NYHA Class III)

If you become breathless with light activity — washing, dressing, walking slowly — or if you have been in hospital recently with worsening heart failure, this is a conversation to have with your cardiologist before resuming sexual activity. Not because the answer is definitively no. But because an assessment of your current state is the right starting point. For many people in this group, getting to a safer place involves optimising medications, addressing fluid, and sometimes cardiac rehabilitation. Of course, if you are feeling quite unwell doing easier activity, then you may not even be contemplating sexual activity, which would also be fairly normal. However, the question of when you might be ready to, is undoubtedly going to cross your mind.

If your heart failure is severe or currently decompensated (NYHA Class IV)

If you are struggling with breathlessness at rest, retaining significant fluid, or have recently been hospitalised with worsening heart failure — wait. Prioritise getting stable. This is not a permanent answer. It is a question of timing, and the goal is always to get you to a point where more of life is available to you, not less.

A simple self-check before resuming sexual activity

✓Can I walk up two flights of stairs without severe breathlessness?

✓Has my heart failure been stable for several weeks?

✓Am I free of excess fluid — not more swollen than my usual baseline?

✓Have I been taking my medications consistently?

✓If yes to all four — sexual activity is likely safe for me. I will confirm with my cardiologist.

3. Arrhythmia risk, cardiomyopathy, and ICDs

This section is for patients who have been told they have a cardiomyopathy, a significantly reduced ejection fraction, a history of abnormal heart rhythms, or who have had an ICD (implantable cardioverter-defibrillator) implanted. If none of these apply to you, you can move to Section 4. If they do — this is important.

Why arrhythmia risk is different in structural heart disease

Sexual activity causes a surge in adrenaline and a temporary increase in heart rate and blood pressure. For most people this is entirely manageable. But for patients whose heart muscle has been significantly affected — particularly those with low ejection fraction, or with specific types of cardiomyopathy — this surge in the nervous system can, in some cases, increase the risk of a serious heart rhythm disturbance. [4]

To give this context: a large study tracking sudden cardiac deaths over 26 years found that death occurring during or within an hour of sexual activity accounted for just 0.2% of all cardiac deaths. [4] This is genuinely rare. But it is not zero, and the risk is not evenly distributed across all patients. People with inherited cardiomyopathies — such as hypertrophic cardiomyopathy (HCM) or arrhythmogenic right ventricular cardiomyopathy (ARVC) — and those with a prior history of dangerous heart rhythms carry a different risk profile and need individual assessment. [4]

The honest message here is not that sex is dangerous for these patients. It is that this group deserves a specific, personalised conversation with their cardiologist — not a general reassurance that applies to all cardiac patients.

From a patient with an ICD —

“They put the device in and sent me home with a leaflet about not lifting heavy things for six weeks. Nobody said a word about anything else. My wife and I just… stopped {having sex}. For over a year. We assumed it wasn’t safe. It took us finding a nurse specialist who actually sat with us and explained it before we believed it was okay.”

If you have an ICD

This is one of the most under-counselled areas in all of heart failure care. Research published in 2025 found that up to one third of ICD patients avoid sexual activity entirely because of fear — fear of triggering a shock, fear of the device, or fear of what might happen. [5] In men with ICDs, rates of erectile dysfunction are reported as high as 70%. [6]

Here is what the evidence shows: sexual activity in ICD patients imposes a mild to moderate cardiovascular demand — the same two to three METs discussed above — and is safe for most patients when their heart failure is on optimised treatment. [5] The American Heart Association describes it as a gentle form of exercise. [7]

More than that: for patients at higher arrhythmic risk, the ICD is actually part of the safety argument for resuming activity. If a dangerous rhythm were to occur, the device is there to respond. It’s your “insurance policy” in a sense – one you know is there but hope to never have to use. This does not eliminate the need for careful discussion — but it fundamentally changes the risk calculus.

One important conversation to have with your ICD clinic / device specialist.

Ask your device team specifically: 'What should I do if my ICD delivers a shock during sexual activity?' This is called a shock plan. Having a clear, rehearsed plan — for both you and your partner — significantly reduces anxiety and means that if it ever happens, neither of you is unprepared. This conversation should happen at your device clinic, not just a general cardiology appointment.

If you have an ICD and have been avoiding sexual activity because of fear rather than because your cardiologist has specifically advised against it — please bring this up at your next appointment. Fear-driven avoidance is common, well-documented, and, in most cases, unnecessary. You deserve a proper answer to your very reasonable questions as part of a discussion around meaningful quality of life.

4. What your medications mean for this

Your heart failure medications are working for you. But some of them have specific implications for sexual health that you deserve to understand. This is the section most patients need most — and the one least likely to have been covered in a clinic appointment.

The most important thing:

nitrates and erectile dysfunction medications do not mix

If you are taking a nitrate medication — this includes tablets placed under the tongue, sprays, patches, and long-acting nitrate tablets taken daily — you cannot take Viagra (sildenafil), Cialis (tadalafil), Levitra (vardenafil), or any medication in the same class (known as PDE5 inhibitors) for erectile dysfunction.

The combination of nitrates and PDE5 inhibitors causes a severe and potentially dangerous drop in blood pressure. This is not a minor caution. It is a firm contraindication. Every patient on a nitrate medication needs to be aware of it.

From a patient —

“I had no idea my spray was a nitrate. I thought nitrates were just tablets. My wife was going to get something over the counter for me. I am so glad I read this first — I genuinely had no idea there was a risk.”

Common nitrate medications include glyceryl trinitrate (GTN) spray or tablets, isosorbide mononitrate, and isosorbide dinitrate. If you are unsure whether you are on a nitrate, ask your pharmacist before taking anything for erectile dysfunction.

If you are on a nitrate and want to discuss options for erectile or sexual function, that conversation needs to happen with your cardiologist. There are pathways forward, but they require careful medical management.

Medication overviewWhat to do

Beta blockers (e.g. carvedilol, bisoprolol, metoprolol, nebivolol)

May reduce libido. Can contribute to erectile dysfunction in men. Third-generation beta blockers such as carvedilol generally have less effect on sexual function than older types.

Tell your doctor if you have noticed a change since starting. Do not stop without discussion. There may be alternative options or dose adjustments worth exploring.

Nitrates (e.g. GTN spray, isosorbide)

Do not directly impair sexual function but create the critical drug interaction described above with PDE5 inhibitors.

Must not be combined with Viagra, Cialis, Levitra, or similar. Ask your pharmacist if unsure. Discuss alternatives with your cardiologist.

Diuretics (e.g. frusemide, spironolactone)

Can cause fatigue and more frequent urination, which may affect timing and comfort around sexual activity. These however are often given in the mornings.

Plan sexual activity for a time of day / night when the diuretic effect is less pronounced — typically several hours after your morning dose.

ACE inhibitors / ARBs (e.g. ramipril, candesartan)

Generally well tolerated. ACE inhibitors may cause a dry cough which can be disruptive. ARBs are less likely to cause this. Some ARBs have been associated with improvement in erectile function.

If cough is significantly affecting quality of life including intimacy, ask about switching to an ARB.

SGLT2 inhibitors (e.g. dapagliflozin, empagliflozin)

Generally do not impair sexual function directly. Increased urination may affect comfort in some patients.

Discuss any concerns with your doctor.

The overall message: well-managed heart failure treatment improves your likelihood of safe, satisfying sexual activity over time. If specific side effects are affecting your quality of life in this area, tell your doctor. Do not assume the answer is to simply stop.

5. Practical guidance

Beyond the medical framework, there are practical, evidence-based things that genuinely help.

Timing

Choose a time when you are rested. Not directly after a large meal — digestion increases cardiac demand. Not in extreme heat. Not when you are already fatigued. For people who manage energy carefully, mornings or early afternoons tend to work well.

Positioning

Sexual positions that require less physical exertion place less demand on the heart. Being in a more reclined position, or being the less physically active partner, meaningfully reduces the cardiovascular workload. This is not just common sense — it is referenced directly in cardiology guidelines. [2]

Managing breathlessness

Mild breathlessness during sexual activity is not automatically alarming — the same principles that guide your exercise effort apply here. If you are slightly breathless but can still speak in sentences, you are at your upper limit. Slow down or rest. If breathlessness is severe or does not settle with rest, stop and seek help. If you use The Four Zones™ framework for daily monitoring, apply the same logic: symptoms that would take you to Orange or Red in daily life warrant the same response here.

Your partner’s fear matters too

From a patient’s wife —

“He wanted to. I was the one who was scared. Every time I thought about it I imagined something happening to him. It took us months to talk about it. We both needed to hear from a doctor that it was okay — not just him, I did too. I think I was more scared than he was.”

Partners often carry more fear than the patient. That fear is completely understandable and deserves space. If your partner is anxious about resuming sexual activity, bring that question explicitly to your next cardiology appointment — together, if possible. Having both people hear the same information from the same source makes a significant difference and helps with confidence. You can then both be on the same page.

A note specifically for women

Most of the research in this area has historically been done in men. A qualitative study published in 2023 explored how women with heart failure experience sexuality and intimacy. [8] It found three common patterns: some women redefine what sexual activity means for them, some reduce it, and some maintain it. What the research was clear about is that women need information to navigate this without fear — and that fear, more than physical limitation, is often what drives avoidance.

If you are a woman with heart failure reading this: your experience matters, your questions matter, and you are allowed to want this part of your life. Do not assume your cardiologist will not take the question seriously. Ask it.

6. The conversation to have with your doctor

Most cardiologists will not bring this topic up unprompted. That is a documented gap in how we deliver care — not a reflection of whether it matters. You are allowed to ask. Here is how.

Questions to take to your next appointment

□Is it safe for me to be sexually active given where my heart failure is right now?

□Do any of my current medications affect sexual function or create risks I should know about?

□Am I on any nitrates?Important if you are considering medication for erectile dysfunction.

□What symptoms during sexual activity should make me stop?

□Is there anything I should do differently — timing, positioning, or pacing?

□If I have an ICD: what should my partner and I do if I receive a shock during sexual activity?Ask this at your device clinic specifically.

□Would cardiac rehabilitation help me get to a point where this is more comfortable? Could it help my confidence in physical activity?

You may feel awkward asking. Ask anyway. Your cardiologist has had this conversation before — and if they have not, they should. You are not being inappropriate. You are advocating for your quality of life, which is exactly what you should be doing.

The bottom line

Heart failure is a serious diagnosis. It does not have to mean the end of intimacy, connection, or a full life. You deserve honest answers to help navigate sexual activity safely.

For most people with stable heart failure, sexual activity is safe. The physical demand is modest. The risks are real but manageable, and they are different for different people — which is why the conversation with your own cardiologist matters more than any general statistic.

Talk to your team. Bring this article if it helps. Bring your partner. Ask the question out loud.

You are allowed to want your whole life back. That includes this.

References

The following sources underpin the clinical content of this article. They are included for patients who want to read further, and for any health professionals who may read this article.1

Baert A, et al. Sexual Activity in Heart Failure Patients: Information Needs and Association with Health-Related Quality of Life. International Journal of Environmental Research and Public Health. 2019;16(9):1570. Available from: https://www.mdpi.com/1660-4601/16/9/15702

Levine GN, et al. Sexual Activity and Cardiovascular Disease: A Scientific Statement From the American Heart Association. Circulation. 2012;125:1058–1072. Available from: https://www.ahajournals.org/doi/10.1161/cir.0b013e31824477873

Burnett AL, et al. The Princeton IV Consensus Recommendations for the Management of Erectile Dysfunction and Cardiovascular Disease. Journal of Sexual Medicine. 2024;21(2):90–100. Available from: https://academic.oup.com/jsm/article/21/2/90/74993324

Arevalo A, et al. Sex, Rhythm and Death: The effect of sexual activity on cardiac arrhythmias and sudden cardiac death. Frontiers in Cardiovascular Medicine. 2022;9:987247. Available from: https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2022.987247/full5

Siontis KC, et al. Sexual Health in Patients With an Implantable Cardioverter-Defibrillator: A Narrative Review. Heart Rhythm. 2025. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC12925870/6

Sears SF, et al. Patient and Partner Sexual Concerns During the First Year After an ICD: A Secondary Analysis of the P+P Randomized Clinical Trial. PMC. 2020. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC7188577/7

American Heart Association. Sexual Health for Patients With an Implantable Cardioverter Defibrillator. Circulation. 2010. Available from: https://www.ahajournals.org/doi/10.1161/circulationaha.110.9496288

Markhus R, et al. Women with heart failure and their experiences of sexuality and intimacy: A qualitative content analysis. Journal of Clinical Nursing. 2023. Available from: https://onlinelibrary.wiley.com/doi/10.1111/jocn.16775

About the author

Dr Jodie-Ann Senior is a cardiologist and heart failure specialist based in Melbourne, Australia. She is the founder of Heart Failure Help Now, a patient education and empowerment program.

drjodieannsenior.com

Medical disclaimer

This article is for general educational purposes only. It does not constitute personal medical advice and is not a substitute for a consultation with your own doctor or specialist. Individual circumstances vary significantly. Always discuss your specific situation with your treating cardiologist or heart failure specialist before making changes to your activity level or medications. If you have an ICD, discuss sexual activity specifically with your device clinic.

You’re Not Alone in This

If you’ve found this helpful, you’re not alone in trying to make sense of all of this.

I share simple, practical guidance on heart failure — the kind of information I wish every patient had from the beginning.

You’re very welcome to join if that would be helpful.

* Photo by Vows on the Move on Unsplash