Medical Oncologist
CION Cancer Clinics
What do you have to remove before your operation? | CION Cancer Clinics
Before a cancer operation you will be asked to remove all jewellery and piercings, removable dentures, nail polish, make-up, contact lenses and metal hairpins. Metal can cause burns, dentures can block the breathing tube, and polish upsets the oxygen monitor. This page explains why each rule exists, what can sometimes stay if you ask, and how to handle a ring that will not come off. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
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Medically reviewed by Dr. Muralidhar MuddusettyConsultant Surgical Oncologist · MBBS (AIIMS), MS (Surgery, AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh) · last reviewed September 2026, next review due September 2027
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On this page
- Why do you have to take off jewellery, dentures and nail polish?
- What exactly will you be asked to remove?
- When should each thing come off?
- What can sometimes stay, and what always comes off?
- What do families worry about, and what is actually true?
- What if a ring will not come off, or you need your hearing aid?
- Common questions about what to remove before surgery
The short answer
Why do you have to take off jewellery, dentures and nail polish?
You remove them so the team can keep you safe while you are asleep. Metal can cause a burn, dentures can slip into your throat, and nail polish can stop a finger monitor reading your oxygen level.
What happens to your body during the operation
Under anaesthesia you cannot tell anyone that a ring is pressing or a denture has come loose. The surgeon often uses a tool that seals small blood vessels with electric current. If metal on your skin touches a wet sheet or the table, that current can find it and leave a burn. Fingers and hands can also swell after a long operation, and a ring that was loose in the morning can cut off blood flow by the evening.
Why the anaesthetist cares about your mouth
For most operations a breathing tube is passed through your mouth. Loose dentures, plates and wobbly teeth get in the way of that tube and can break or slip backwards. The anaesthetist needs a clear view and a clear airway.
Why colour on your nails and face matters
A small clip on your finger measures oxygen through the nail. Dark polish, gel and acrylic nails can make that reading wrong. The team also looks at the colour of your lips, skin and nail beds as an early warning sign, and make-up hides it.
None of this is a judgement about faith or custom. It is about what the equipment and the airway need.The list
What exactly will you be asked to remove?
Your ward nurse will go through a checklist with you before you leave for theatre. These are the items on almost every list.
Jewellery and piercings
Every ring, bangle, chain, anklet and watch. Piercings in the ears, nose, tongue and belly button count too, because they are metal against skin.
Often forgotten
- Toe rings
- Nose pins and studs
- Waist chains and black threads with metal beads
Dentures and dental plates
Full sets, partial plates and removable retainers come out before the anaesthetic. Fixed crowns and bridges stay in, but tell the anaesthetist about them and about any loose tooth.
Nail polish and false nails
Remove polish from at least one finger on each hand, and ideally all of them. Gel and acrylic nails are harder to take off at home, so plan for this a few days ahead.
Glasses, lenses and hearing aids
Contact lenses must come out. Glasses and hearing aids can often stay with you until you reach the anaesthetic room, so you can see and hear what is said.
Label the case with your name.Make-up, hairpins and wigs
Lipstick, kajal, foundation and false eyelashes come off. Metal hairpins and clips come out. A wig or head covering can usually be replaced with a theatre cap.
Not sure whether this applies to you?
Ask an oncologistTiming
When should each thing come off?
A few days before
Get gel or acrylic nails removed at a salon. Try your rings. If one is tight or has not come off in years, ask a jeweller to cut or loosen it now rather than in the ward.
The night before
Take off all polish and make-up. Leave gold, cash and valuable jewellery at home with a family member. Hospitals cannot take responsibility for them.
On the ward that morning
Remove the rest of your jewellery, contact lenses and hairpins. Hand them to the person who has come with you, and let the nurse note what you are still wearing.
In the anaesthetic room
Dentures, glasses and hearing aids come out last. They go into a named container that travels with you and comes back to you in recovery.
Side by side
What can sometimes stay, and what always comes off?
Sometimes allowed, if you ask first
Almost always removed
A plain wedding band taped over, far from the operation site
Any ring on the hand or arm being operated on
A cotton sacred thread with no metal, taped down
Chains, beads or charms with metal parts
Glasses and hearing aids until the anaesthetic room
Contact lenses, which can harm the eye while you sleep
Fixed crowns and bridges
Removable dentures, plates and retainers
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Commonly believed
What do families worry about, and what is actually true?
"A married woman cannot take off her mangalsutra or toe rings."
Many women feel strongly about this, and the team knows it. Say so on the ward. Some teams can tape a thread in place or let it stay away from the operation area. Where metal must come off, a family member can hold it and put it back on in recovery.
"Gold is fine. Only cheap metal causes burns."
Any metal can carry electric current, including gold and silver. The purity of the metal does not change the risk. It also makes gold more likely to go missing in a busy ward.
"He will be embarrassed without his dentures, so leave them in."
Dentures in the mouth during a breathing tube can break or slip. Staff see people without dentures every day. The dentures go back in as soon as he is awake enough to hold them safely.
"Clear nail polish does not count."
Clear polish affects the finger clip far less than dark colours, but many centres still ask for bare nails. Follow what your centre tells you rather than guessing.
Being straight with you
What if a ring will not come off, or you need your hearing aid?
Tell the nurse as soon as you arrive. Do not force a tight ring with oil and pulling until the finger swells. There are simple ways to deal with it, and the earlier the team knows, the calmer the morning is.
A ring stuck on the finger
Staff may try a thread or tape method to ease it over the knuckle. If that fails, the ring can be cut with a small ring cutter. Where the finger is far from the operation and the ring is loose, the anaesthetist may allow it to be covered with tape instead. That choice is theirs, not ours to promise from here.
If you cannot hear or see without your aid
Ask for your hearing aid and glasses to stay with you until the last moment. Ask for them to be returned in recovery. If the person who speaks for you in Telugu or Urdu is not allowed into the anaesthetic room, ask whether a staff member can explain things in that language.
What this page cannot tell you
Rules differ between hospitals and between operations. A small procedure under local anaesthetic may need far less removed than a long abdominal operation. Your own centre's checklist is the one to follow.
Did you know
Before you go into theatre, a nurse, the anaesthetist and the surgeon each check your name, your operation and what you are still wearing. You may be asked the same questions three times. That repetition is a safety step, not a sign that someone has lost your notes.
Questions we are asked
Common questions about what to remove before surgery
Can I keep my mangalsutra on during surgery?
Usually the metal parts must come off, because any metal on the skin can cause a burn. Tell the ward nurse early that this matters to you. Some teams can tape a plain thread in place or keep it away from the operation area. A family member can hold it and help you put it back on in recovery.
Do I really have to take out my dentures?
Yes, removable dentures and plates come out before a general anaesthetic. The breathing tube passes through your mouth, and a loose denture can break or slip back into the throat. You can usually keep them in until the anaesthetic room, and they are returned to you in recovery in a named container.
Why do they want my nail polish removed?
A clip on your finger reads your oxygen level by shining light through the nail. Dark polish, gel and acrylic nails can make that reading wrong at the moment it matters. The team also checks the colour of your nail beds. Remove polish at home the night before, and get false nails taken off a few days ahead.
What happens to my jewellery once I take it off?
The simplest answer is to not bring valuable jewellery at all. Whatever you do wear to hospital, hand to the family member who came with you before you go to theatre. Most hospitals will not take responsibility for gold, cash or phones left in a ward cupboard, so ask your centre what it can store.
Can I wear my glasses or hearing aid to theatre?
Often yes, up to the anaesthetic room, so that you can see and hear what the team is telling you. They are removed just before you go to sleep and kept with your notes. Ask for them to be put back as soon as you wake. Contact lenses are different and must come out on the ward.
My ring has not come off in years. What should I do?
Try it a few days before admission, not on the morning. If it will not move, a jeweller can cut or widen it safely. If you only discover it on the ward, tell the nurse. Staff can try a tape method or cut it with a ring cutter. Do not keep pulling until the finger swells.
Can I wear a religious thread, taweez or kalava?
Ask the ward nurse and the anaesthetist, and ask early. A cotton thread with no metal, far from the operation site, is sometimes allowed if it is taped down. Anything with metal parts, or anything on the arm or area being operated on, usually has to come off. A family member can keep it for you.
Can I wear make-up, kajal or henna on the day?
Please come without make-up, kajal, lipstick or false eyelashes. The team watches your skin and lip colour for early warning signs, and make-up hides them. Mehndi that is already on your hands is not something you can remove, so simply mention it to the nurse and the anaesthetist when you arrive.
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Sources
- NHS — General anaesthesia
- American Cancer Society — Cancer surgery
- Cancer.Net — What to expect when having surgery
- NICE — Perioperative care in adults (NG180)
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
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