TSA screening rules for medical devices at airport security

The Transportation Security Administration (TSA) allows medical devices through airport security without removing them from your carry-on or body, but you need to tell the officer at the checkpoint that you have them. Insulin pumps, continuous glucose monitors, pacemakers, and similar devices do not need to go through the X-ray machine. Inform the officer verbally—say "I'm wearing a medical device" or "I have a medical device in my bag"—and they will typically wave you through or use alternative screening like a pat-down or swab test instead.

The rule applies to both domestic and international flights. TSA officers are trained to recognize medical devices, but they may ask what the device is and why you need it. A brief, straightforward answer ("It's an insulin pump") is usually enough. If you wear the device on your body, you can keep it on during screening. If it is in your carry-on, point it out when you open your bag for inspection.

Some devices—like certain infusion pumps or ventilators—may trigger additional questions because they look unfamiliar. Having documentation with you (covered in a later section) speeds this up. If an officer is unsure, they can call a supervisor or use a reference guide, but this rarely delays you more than a few minutes.

Key Takeaways

  • Tell the TSA officer at security that you have a medical device; you do not need to remove it or send it through the X-ray machine.
  • Carry a letter from your doctor that names your device, explains why you need it, and confirms it is medically necessary—this prevents delays if an officer has questions.
  • Pack extra batteries, chargers, and backup power supplies in your carry-on, not checked luggage, because you need them accessible during the flight.
  • Check with your airline before you travel about their specific policies on medical devices, power cords, and lithium batteries, since rules vary by carrier.
  • If your device uses refrigeration or special storage, contact the airline in advance to arrange space in a galley refrigerator or to confirm cabin temperature will keep it safe.

Power supplies and charging during flights

Batteries and chargers for medical devices must go in your carry-on bag, not checked luggage. If a device fails mid-flight and you cannot reach it in the cargo hold, you have no way to fix it. Airlines allow medical device chargers and batteries as exceptions to normal lithium battery rules, but you need to declare them. When you check in, tell the airline representative that you have medical device batteries or a charger, and they will note it in your reservation.

Bring more power than you think you will need. A cross-country flight plus a connection plus a delay can easily stretch to 8 to 10 hours of travel time. If your device runs on rechargeable batteries, pack a fully charged spare battery and a charger that works from a standard outlet or USB port. If it runs on disposable batteries, bring twice as many as you normally use in that time span. Many airports now have charging stations in terminals, but they are not always near your gate, and you may not have time to use them between flights.

Check whether your device can charge from a USB port or needs a wall outlet. Some airlines have USB ports in seats or armrests on newer aircraft, but older planes do not. If you need a wall outlet, ask the flight attendant whether one is available in the galley or cockpit area—crew members sometimes allow medical device charging in these spaces. If you are flying internationally, bring a power adapter that matches the outlets in your destination country.

Documentation you should carry

A letter from your doctor is the single most useful document for traveling with a medical device. The letter should state your name, the name and model of the device, why you need it, and that it is medically necessary. It does not need to be long—a paragraph is enough. The letter should be on the doctor's letterhead and dated within the past year. This letter helps at TSA checkpoints, at airline gates, and at customs if you are traveling internationally.

Keep the letter in your carry-on bag, not checked luggage. Take a photo of it on your phone as well, in case the physical copy is lost or damaged. If your device is an implant (like a pacemaker), you should also carry the implant card that came with it—this card has the device model and serial number and is recognized by security officers worldwide.

For international travel, check the rules of your destination country. Some countries have restrictions on certain medical devices or require additional paperwork. The U.S. State Department website lists embassy contact information by country; you can email the embassy of your destination to ask about device restrictions before you travel. The International Air Transport Association (IATA) also publishes guidelines for traveling with medical devices, which you can reference if an airline questions your device.

Notifying the airline before you book

Contact the airline's medical or special services desk before you book your flight, or as soon as you have a confirmation number. Tell them what device you have and ask whether they have any specific requirements or recommendations. Some airlines ask you to call 24 to 48 hours before departure to confirm you are traveling with the device; others do not require this but appreciate the notice.

If your device needs refrigeration, special storage, or a power outlet during the flight, mention this when you call. Airlines can sometimes arrange for galley space or a seat near an outlet, but they need advance notice. If you use oxygen or a ventilator, the airline will have a separate process—these devices require medical clearance forms and advance coordination with the airline's medical department.

Write down the name and phone number of the person you speak with and the date of the call. If you encounter a problem at the airport, you can reference this conversation. Airlines occasionally have staff who are unfamiliar with medical device policies, and having documentation of your prior call can resolve confusion quickly.

Screening procedures at international borders and customs

International airports may screen medical devices differently than U.S. airports. Some countries use different security equipment or have different rules about what can bypass X-ray screening. Your doctor's letter becomes especially important here, because not all security officers will recognize English-language medical abbreviations or device names.

If you are traveling to a country where you do not speak the language, consider writing a simple statement in that language explaining your device. You can use a translation app to convert "I wear an insulin pump for diabetes and cannot remove it" into the local language, print it, and show it to security officers. This prevents miscommunication and speeds up screening.

Customs officers may also ask about your device, especially if it is a new or unfamiliar model. Your doctor's letter and implant card (if applicable) help here too. If you are bringing backup devices or supplies, declare them honestly. Customs officers are generally familiar with medical devices and will not confiscate them if they are for your personal use.

What to do if security stops you or questions your device

If a TSA officer or airport security staff member stops you, stay calm and explain that you have a medical device. Show your doctor's letter and your implant card if you have one. Most delays happen because the officer is unfamiliar with the device, not because there is a problem. A supervisor or a reference guide can usually resolve the question within a few minutes.

If an officer insists on sending your device through an X-ray machine or removing it, politely but firmly explain that your doctor has advised against this and that you have documentation. Ask to speak to a supervisor. TSA has a formal process for medical device exceptions, and supervisors are trained to handle these situations. In rare cases, you may need to show your doctor's letter or call your doctor from the airport to confirm the device should not go through X-ray screening.

If you are delayed or miss a flight because of a medical device screening issue, ask the airline or TSA for a written explanation. This documentation can help if you need to file a complaint or if you encounter the same problem on a future trip.

Packing and preparing your device for travel

Pack your device and all its accessories in a separate, easily accessible part of your carry-on bag. Do not bury it under other items. If security needs to inspect it, you want to be able to pull it out quickly. Keep batteries, chargers, and backup supplies together in a small pouch or bag within your carry-on.

Before you travel, test all chargers and batteries to make sure they work. A charger that has not been used in months may not function, and you do not want to discover this at the airport. If your device has a manual or instruction booklet, bring a copy or have it saved on your phone. If something goes wrong with the device during travel, the manual can help you troubleshoot or explain the problem to a doctor or technician.

Check the weather and climate of your destination. Some devices are sensitive to temperature or humidity. If you are traveling to a very hot or very cold place, ask your device manufacturer whether the device will function safely in those conditions. If you are traveling to a humid climate and your device is sensitive to moisture, pack silica gel packets or a small dry bag to protect it.

Frequently Asked Questions

Can I bring my medical device through airport security without a doctor's letter?

Yes, TSA allows medical devices through security without a letter, but having one prevents delays and confusion. If an officer is unfamiliar with your device or questions why you need it, a letter from your doctor resolves the issue in seconds. It is not required, but it is the fastest way to get through screening.

What if my device has a lithium battery?

Lithium batteries in medical devices are allowed in carry-on bags as exceptions to normal battery rules. Tell the airline when you check in that you have a medical device with a lithium battery. Spare lithium batteries for medical devices are also allowed, but they must be in your carry-on, not checked luggage. Bring documentation showing the battery is for a medical device.

Can I charge my device during the flight?

It depends on the aircraft and airline. Newer planes sometimes have USB ports or seat outlets, but older planes do not. Ask the flight attendant when you board. If no outlets are available, you can sometimes charge in the galley or cockpit area with crew permission. This is why bringing extra batteries is important—assume you will not have access to power during the flight.

Do I need to remove my pacemaker or insulin pump at security?

No. Tell the officer you have the device, and they will use alternative screening like a pat-down or swab test instead of sending you through the metal detector or body scanner. The device stays on your body or in your bag the entire time.

What should I do if I am traveling internationally and my device is not recognized?

Bring your doctor's letter and implant card (if you have one). If the security officer still does not understand, ask to speak to a supervisor or a medical officer at the airport. You can also contact your airline's medical desk before you travel and ask them to note in your reservation that you have a medical device, so staff are prepared when you arrive.