You should wear loose, comfortable clothing that is easy to take off and put back on, because you will change into a hospital gown before the procedure and change back afterward while potentially groggy from sedation. Think elastic-waist pants or shorts, a simple pullover shirt, and slip-on shoes. Leave anything valuable or hard to manage at home. The real goal is making your arrival and departure as effortless as possible, since the medical team handles everything about what you wear during the actual colonoscopy.
You Will Not Wear Your Own Clothes During the Procedure
This is the single most important thing to understand, and it eliminates a lot of worry. Regardless of what you show up in, the facility will ask you to change into a gown. Your street clothes go into a bag or locker, and you get them back when you are in recovery. The gown is standard across nearly all endoscopy centers because the medical team needs unobstructed access to your abdomen and lower body, and your clothes need to stay clean. So the question is really about what to wear to and from the building, not what to wear on the procedure table.
Standard hospital gowns open in the back, and yes, they are not exactly dignified. Researchers have studied this discomfort directly. A trial at an endoscopy center tested a disposable garment designed to provide more coverage than a standard gown during colonoscopy, with the explicit goal of reducing embarrassment from bodily exposure and potentially improving colonoscopy acceptance rates.1PubMed Central. Effect of a Novel Patient Garment on Perceived Privacy during Colonoscopy: A Simple Approach to Minimize Embarrassment A separate review of novel gowning approaches noted that patients who used these modified garments reported high satisfaction and reduced embarrassment.2PubMed Central. Healing by Leaps and Gowns: A Novel Patient Gowning System to the Rescue If privacy during the procedure is a serious concern for you, it is reasonable to call the endoscopy center beforehand and ask what type of gown they provide. Some centers have adopted shorts-style garments with a rear opening rather than the classic full gown.
What to Actually Wear to the Appointment
The ideal outfit is something you could change out of in thirty seconds while standing in a small curtained area, and something you could pull back on afterward while feeling slightly out of it. Here is what works well:
- Elastic-waist pants or sweats: You will probably feel bloated after the procedure, and anything with a button or zipper pressing into your belly will be uncomfortable. Drawstring joggers, yoga pants, or loose pajama-style bottoms are all good choices.
- A simple top: A pullover T-shirt or sweatshirt that does not require buttoning. Avoid anything tight-fitting or structured.
- Slip-on shoes: Sandals, slides, or loafers you can step into without bending down to tie laces. After sedation, your coordination and balance are reduced, and fumbling with shoelaces in a recovery bay is annoying at best.
- Warm layers: A hoodie or zip-up jacket you can throw on quickly. Endoscopy suites tend to be cool, and you may feel chilled in recovery.
Avoid clothing that is complicated to get in and out of: rompers, jumpsuits, overalls, belted dresses, or anything with many buttons. You want the absolute minimum number of steps between “standing in the changing area” and “ready to go.”
What to Leave at Home
Most endoscopy centers will ask you to remove jewelry, watches, and piercings before the procedure. This is standard protocol across surgical and procedural settings because metal objects can interfere with monitoring equipment and, in some cases, pose a safety concern during electrosurgery. The simplest approach is not to wear any of it in the first place. Wedding bands are sometimes allowed to stay on if taped, but policies vary, so check with your facility.
Beyond jewelry, leave behind anything you would hate to lose track of while sedated. Valuables like expensive watches, rings, or earbuds can go missing in the shuffle between changing areas, procedure rooms, and recovery bays. If you bring a phone, your driver or a family member can hold it while you are under. Many centers have small lockers or plastic bags for belongings, but the less you bring, the less you have to worry about.
Contact lenses are generally fine to keep in, though some facilities prefer you remove them. If you wear glasses, bring a case so they do not get set down on a counter somewhere. Hearing aids are typically allowed to stay in during sedation, and many anesthesia teams prefer it so they can communicate with you.
If You Wear a Continuous Glucose Monitor or Insulin Pump
People with diabetes who use a continuous glucose monitor should keep the sensor on throughout the entire process. A review of colonoscopy preparation for people with diabetes emphasized that the sensor should not be removed at any point during the peri-procedural period because glucose levels can fluctuate due to changes in diet and the bowel preparation regimen.3PubMed Central. Preparing for Colonoscopy in People with Diabetes: A Review with Suggestions for Clinical Practice If you use light sedation, you can even check your own glucose readings during the procedure. Under deeper sedation, a member of the healthcare team can monitor your sensor for you, provided you bring your reader, receiver, or smartphone.
If you wear an insulin pump, talk to both your endocrinologist and the endoscopy team in advance. The pump itself generally stays on your body, but dosing adjustments during the fasting and bowel-prep period are critical. When you change into the gown, make sure the pump is accessible and that the tubing is not going to get caught or kinked. Let the nursing staff know where the pump is located on your body so they can work around it.
Why You Might Feel Cold and What Helps
Endoscopy suites are kept relatively cool for equipment and infection-control reasons, and you will be lying still in a thin gown with parts of your body exposed. Add sedation to the mix and your body loses heat faster than normal. Research on heat loss during procedural sedation for endoscopy found that minimizing body exposure, monitoring ambient temperature, and actively warming patients can reduce convective heat loss.4Journal of PeriAnesthesia Nursing. Heat Loss During Procedural Sedation for Endoscopy: A Descriptive Study Many centers now use warmed blankets or forced-air warming systems during and after the procedure.
From your side, the practical move is to bring warm socks (the non-slip kind are great) and a jacket or blanket for recovery. If you tend to run cold, mention it to your nurse before the procedure starts. Asking for a warmed blanket is completely normal and most endoscopy units keep a blanket warmer stocked for exactly this purpose. You might also want to wear your warm layers right up until the moment you change into the gown, rather than stripping down early.
Footwear Deserves More Thought Than You Would Expect
After sedation, your balance and reflexes are not what they usually are. You will be walking from a recovery chair to a car, sometimes across a parking lot, while still feeling the residual effects of the anesthetic. Research on footwear and gait in clinical settings has found that the type of shoes a person wears can influence gait patterns associated with fall risk, particularly in older adults.5AHFE International. Influence of Footwear on Fall Risk in Older Persons This does not mean you need medical-grade footwear, but it does mean this is not the day for flip-flops with no heel strap, high heels, or stiff boots that are hard to get on.
The best choice is a shoe you can slip on without bending over and that stays securely on your foot while walking. Athletic slides with a back strap, simple sneakers you have already broken in, or supportive slip-on shoes all work. If you wear non-slip hospital socks during recovery (some centers provide them), you can just wear those to the car and put your shoes on at home.
Dressing for the Ride Home
The drive home is where your clothing choice matters most. After the colonoscopy, air is pumped into your colon to give the doctor a clear view, and not all of that air is removed before the scope comes out. The result is bloating and gas that can last for several hours. Some centers now use carbon dioxide instead of room air for insufflation, which the body absorbs faster. A systematic review of randomized trials found that carbon dioxide insufflation significantly reduced both procedural and post-procedural pain compared to conventional air, with the benefit persisting at one, six, and even twenty-four hours after the procedure.6PubMed. Carbon dioxide insufflation vs conventional air insufflation for colonoscopy: a systematic review and meta-analysis of published randomized controlled trials But even with carbon dioxide, some bloating is normal in the hours after.
This is why elastic-waist pants are not just a convenience suggestion but a genuine comfort recommendation. Anything that presses on your abdomen, including seatbelts (which you still need to wear), will feel more noticeable. Loose layers you can adjust help. Some people also find it helpful to bring a small pillow to place between the seatbelt and their stomach for the ride home. If your center is far from home, wear something you would be comfortable falling asleep in, because many people doze during the drive.
Underwear, Bras, and Common Questions People Are Embarrassed to Ask
You will typically remove your underwear when you change into the gown, since the procedure involves access to the rectal area. Some people find this the most uncomfortable part of the whole experience, and it is worth knowing in advance so it is not a surprise. If the center uses a shorts-style garment with a rear flap, you may not need to remove underwear, but that is facility-dependent. When in doubt, wear underwear you do not mind pulling off and on quickly.
Bras can usually stay on during the procedure, though sports bras or bralettes without underwire are easier to deal with under a gown. If your bra has a metal clasp and the center asks you to remove all metal, a simple pullover sports bra eliminates the issue entirely. Some people skip a bra altogether and just wear a loose shirt, which is perfectly fine.
If you are menstruating on the day of your colonoscopy, the procedure can still go forward. Use whatever menstrual product you normally would. Tampons and menstrual cups are typically fine to leave in place. Let your nurse know so there are no surprises, but this is routine for endoscopy teams.
What About Makeup, Nail Polish, and Perfume
Many facilities ask you to skip nail polish, especially on your fingernails. The pulse oximeter clipped to your finger during sedation reads your blood oxygen level through your nail bed, and dark or thick polish can interfere with the reading. Clear polish and most light colors are usually fine, but if you want to avoid any hassle, go bare. Gel and acrylic nails can sometimes cause problems with the oximeter too, so consider removing polish from at least one or two fingers if you have a full set.
Makeup is generally fine but will not look great after an hour of lying on your side while sedated. Mascara, in particular, tends to smudge. If appearance matters to you on the way home, go minimal or bring a small kit to touch up afterward. Perfume and heavily scented lotions are best avoided, partly out of courtesy to staff working in a small room and partly because strong scents can trigger nausea in other patients in the recovery area who are coming out of sedation.
Religious and Cultural Garments
If you wear a head covering, hijab, turban, kippah, or other religious or cultural garment, you can generally keep it on throughout the entire process. The colonoscopy involves the lower body, and head coverings do not need to be removed for medical access or monitoring purposes. If you have concerns, call the facility ahead of time and let them know what accommodations you need. Most endoscopy centers are accustomed to this and will work with you.
Modesty garments that cover the torso or legs are where things get more nuanced. You will still need to change into some form of procedure-appropriate clothing for lower-body access, but many centers can provide additional draping or a second gown worn in the opposite direction for more coverage. If this is important to you, asking in advance gives the staff time to prepare. Some patients also request a same-gender care team; availability varies, but the request is not unusual, and most facilities will do their best to accommodate it.
A Packing Checklist for the Day
Beyond what you wear, a few small items in a bag can make the whole experience smoother:
- Phone charger: You may wait longer than expected, and your phone is your entertainment and your contact line to your ride.
- Warm socks: Non-slip ones are ideal for walking around the facility and staying warm in recovery.
- A light blanket or large scarf: For extra warmth in the recovery area if the provided blankets are not enough.
- Lip balm: Bowel prep and fasting can leave your lips very dry.
- A plastic bag: For your gown and any disposable items you want to keep separate from clean clothes.
- Snack for afterward: You will have fasted for many hours. Something bland and easy on the stomach, like crackers or a banana, is a welcome reward once you are cleared to eat.
Your driver should have the car pulled up close to the exit if possible. The less walking you have to do while still shaking off sedation, the better. If the weather is cold, have your driver crank the heat before picking you up, because you will likely feel chillier than normal after lying in a cool room for the better part of an hour.