Who Should Not Use an Infrared Sauna? Medications, Heart Conditions, and Joint Replacements

People with unstable heart disease or current dehydration should avoid infrared and traditional saunas. But a health diagnosis is not always a “no”: controlled high blood pressure and a healed joint replacement may be compatible with sauna use when your care team agrees.

For adults over 50, the goal is to make sauna time comfortable, enjoyable, and appropriate for your health. That starts with knowing the difference between a reason to pause and a reason to make a personalized plan.

You may not need to give up the idea of a relaxing home sauna. You may simply need answers to a few important questions first.

Key takeaways

• A stable condition is different from an unstable one. Having a heart or blood-pressure diagnosis does not automatically rule out sauna use.
• Review medications—do not skip them. Ask your prescriber about heat precautions before changing any prescribed dose or schedule.
• Joint replacements are not an automatic restriction. Hospital guidance allows infrared sauna use after the wound has healed and overall health permits it.

Who should not use an infrared sauna or traditional sauna?

Avoid sauna use when you are dehydrated, acutely ill, or have an unstable medical condition that makes heat exposure unsafe. Other situations call for medical guidance rather than a permanent restriction. Both infrared and traditional saunas require attention to your health, symptoms, and ability to tolerate heat.

When the answer is “not right now”

Do not use a sauna with unstable angina, a recent heart attack, worsening or decompensated heart failure, severe aortic stenosis, or uncontrolled high blood pressure until your medical team has assessed the situation. These conditions can make the changes in circulation caused by heat unsafe. Aortic stenosis means a major heart valve is narrowed.

Also postpone sauna sessions when you have a fever, are dehydrated, or are losing fluids through vomiting or diarrhea. Wait until you have recovered rather than trying to “sweat out” an illness. Avoid sauna use after drinking alcohol.

Pregnancy requires separate advice. The American College of Obstetricians and Gynecologists advises against sauna and hot-tub use early in pregnancy because of concerns about increased body temperature.

When a personalized plan matters

Conditions that affect cooling or fluid balance deserve a closer look. Diabetes-related nerve damage can interfere with sweating, while advanced kidney disease can make hydration more complicated. These are reasons to discuss sauna use with your care team—not to rely on general advice to “just drink more water.”

People with heat-sensitive multiple sclerosis may need to avoid saunas because heat can worsen their symptoms. Significant heat intolerance should be discussed with the clinician managing the condition.

Are there medications that should be avoided before sauna use?

Some medications make sauna heat unsafe or require extra precautions. Do not skip, stop, or reschedule prescribed medicine to fit in a sauna session. Ask your prescriber or pharmacist to review your medicines; the appropriate change may be to your sauna routine, not your treatment.

The CDC’s medication guidance addresses heat exposure generally, not sauna trials of every drug. It provides a useful starting point for that review.

This is a review list, not a list of medicines everyone must stop taking.

Medication patches need special attention

Do not use a sauna while wearing a fentanyl patch. Heat can increase delivery of the medicine and cause a dangerous overdose. MedlinePlus specifically warns against exposing fentanyl patches to saunas, hot tubs, and other heat sources. Do not remove a prescribed patch simply to make a sauna session possible; discuss your plans with the prescriber.

The scopolamine motion-sickness patch has a different concern: it can reduce sweating and disrupt temperature control. In June 2025, the FDA added a warning about serious heat-related complications, with reported cases concentrated in children and adults 60 and older. People using this patch should avoid external heat sources and discuss sauna use with their clinician.

Other medicated patches may also have heat precautions. Check the instructions for your exact product rather than assuming all patches behave the same way.

Is it okay to use a home sauna with high blood pressure or a heart condition?

Often, yes—when the condition is stable and your clinician agrees. Controlled high blood pressure is different from uncontrolled hypertension, and stable heart disease is different from new or worsening symptoms. The decision should account for your diagnosis, medicines, usual blood pressure, and previous response to heat.

Sauna heat widens blood vessels and can raise heart rate. Blood pressure may drop afterward, which makes lightheadedness an important precaution—even for someone whose usual blood pressure is high.

A useful conversation with your clinician goes beyond “Can I use a sauna?” Ask:

Is my condition stable enough for home sauna use? What temperature and session length should I start with, and what symptoms or blood-pressure readings should make me postpone it?

There is no reason to treat the maximum setting on a sauna as your personal target.

What does the research show about heart patients?

A 2016 randomized study included 149 heart-failure patients with an average age of 66. Researchers tested supervised far-infrared heat treatment, called Waon therapy, over two weeks. No serious adverse events were reported, although some participants experienced treatment-related low blood pressure or reduced fluid volume.

That study helps explain why heart disease is not automatically a lifetime ban on sauna use. It also shows why medical supervision and fluid management matter. A hospital treatment protocol is not the same as using a home sauna independently.

Use sauna time as an addition to your approved routine—not a reason to change heart treatment on your own.

Can you use an infrared sauna with a hip or knee replacement?

A healed hip or knee replacement does not automatically prevent infrared sauna use. The main questions are whether the surgical wound has healed, your overall health allows heat exposure, and your surgeon has cleared your return. Recent surgery and a long-healed replacement should not be treated as the same situation.

There is direct guidance on this question from Coxa Hospital for Joint Replacement in Finland. Its patient guide states:

You can go to the infrared sauna when the wound has healed and your overall condition allows it.

The hospital does not treat the joint implant itself as a reason to avoid infrared heat. That is more useful than a blanket warning that anyone with metal in their body must avoid saunas.

What matters after recent joint surgery?

Early recovery deserves extra care. Your surgical team should consider wound healing, swelling, and your ability to move comfortably before you resume sauna use. An incision that looks better does not necessarily mean every part of recovery is complete.

Ask your surgeon specifically about infrared or traditional sauna use, rather than assuming permission to shower, exercise, or use a heating pad covers a full sauna session.

For the home setup, think through the movements involved. Can you sit down and stand up without difficulty? Is the seat height comfortable? Can you exit without a deep bend, twist, or awkward step? These are practical questions to review with your surgeon or physical therapist.

The aim is not to avoid warmth forever. It is to return at the right stage of recovery, in a setup that works for you.

Is an infrared sauna safer because it uses lower temperatures?

Infrared saunas can produce a sauna experience at lower air temperatures than traditional saunas, which may feel more comfortable. However, they still warm the body and cause sweating. A lower room temperature does not cancel medication warnings or make an unstable medical condition safe for heat exposure.

That distinction is helpful when choosing a sauna. Lower-temperature options may suit your preferences, but your health plan should guide the session.

Think of temperature controls as a way to tailor the experience—not as a challenge to keep turning the heat higher.

How can you start a home sauna routine comfortably?

Once sauna use is appropriate for you, begin with a brief session at a lower setting and leave before you feel strained. Cleveland Clinic suggests five to 10 minutes as an introductory approach for infrared sauna use. Your clinician may recommend a shorter session or different limits.

Make hydration personal. Drink appropriately before and after the session, but follow medical guidance when you have a fluid restriction or take water pills. Do not automatically add large amounts of water, salt, or electrolyte drinks to your routine.

Allow time to cool down. Rise carefully and avoid rushing into another activity. People with heart disease should not jump straight from sauna heat into an ice bath or cold pool; the abrupt change can disturb heart rhythm and blood pressure.

Keep the experience easy to end. Use a timer, keep the exit clear, and do not fall asleep in the sauna. Needing help to recognize overheating or leave safely calls for supervision and a care plan, not solo use.

Which symptoms mean you should stop?

Leave immediately if you feel dizzy, nauseated, unusually weak, or unwell. Move somewhere cooler and get help if symptoms do not settle promptly. These symptoms should not be treated as something to push through.

Chest pain, significant trouble breathing, confusion, or loss of consciousness require emergency help. Call 911 in the United States or your local emergency number.

What else should you know before using a sauna?

Age and implanted devices can raise additional questions, but neither should be answered with a blanket rule. Older adults may need more attention to heat tolerance, while people with cardiac devices need advice about both the device and the heart condition it treats.

Does being over 65 mean you should avoid saunas?

Not automatically. The CDC identifies adults 65 and older as more vulnerable to heat-related problems because of changes in temperature regulation, chronic conditions, and medication use. That makes a careful starting plan important; age alone does not describe your entire health situation.

Can you use a sauna with a pacemaker?

A pacemaker is not automatically a sauna restriction. Medtronic lists saunas among items with no known electromagnetic-interference risk when used as intended and in good working condition. However, that addresses device interference—not whether sauna heat is appropriate for your heart condition. Confirm both questions with your device clinic or cardiologist.

How can you choose a sauna with confidence?

Choose a home sauna around your health plan and everyday comfort: adjustable settings, accessible controls, suitable seating, and an easy exit. When you know which precautions apply to you, the buying decision can focus on creating a warm, welcoming routine rather than guessing about safety.

For a portable setup, explore the Therasage Thera360 Plus Portable Infrared Sauna in Black. Compare its dimensions, seating, and setup with your space and mobility needs.

Or browse Infrared Saunas at The Swell Score to consider the format that best fits your home.

The right sauna routine is one you can enjoy comfortably and confidently. For some people, that means waiting until an illness or surgical recovery has passed. For others, it means a medication review and a few personal limits—not giving up sauna time altogether.

This article provides general education, not individualized medical advice. Follow your healthcare team’s guidance and the instructions for your sauna and medications.