Child Swallowed a Coin or Button Battery: What to Do Right Now
If your child may have swallowed a button battery or a magnet, go to hospital now, even if they seem perfectly fine. Don’t make them vomit, don’t give food, and don’t wait for symptoms, because a battery can burn through the food pipe within a couple of hours. A swallowed coin is usually less urgent, and below you’ll see exactly which signs decide how fast to move.
Quick facts
- Button battery or magnet: hospital immediately, no waiting, bring the device or packet.
- Coin, choking or struggling to breathe: choking first aid and call 1122 (Pakistan) or 112/108 (India).
- Coin, drooling, won’t swallow, chest or throat pain: hospital now, it may be stuck.
- Coin, no symptoms: see a doctor today; an X-ray shows where it is.
- Never: induce vomiting, give salt water, or push bread or banana down to “move it along”.
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Button batteries and magnets: why they’re emergencies
A button battery is the flat, shiny, coin-shaped cell inside remote controls, car keys, weighing scales, musical cards, light-up toys and watches. When it lodges in the food pipe (oesophagus), the wet lining lets current flow. That current makes a strong alkali, the same kind of chemical as drain cleaner, right against the tissue. It can cause a serious burn in about 2 hours and damage can keep growing after the battery is removed.
The bigger lithium cells, around the size of a 1 rupee coin (the 20 mm “2032” type is the classic one), are the most dangerous because they’re wide enough to get stuck and strong enough to burn fast.
Magnets are the other trap. One small magnet may pass. Two magnets, or a magnet plus any bit of metal, can pull together through two loops of bowel and pinch the wall until it tears. Tiny ball magnets from “desk toys” and loose magnets from broken toys are the usual culprits.
- Go to the nearest hospital with an emergency department now. Call 1122 or 112/108 if you have no transport.
- Don’t make them vomit. A battery coming back up can burn the throat a second time.
- Don’t give food or drink unless a doctor or poison information service tells you to. The child may need a scope under anaesthesia.
- Bring the device, the battery packet or a matching battery. The size and type help the doctors.
- Tell staff clearly: “possible button battery” or “possible magnets”. Those words move you up the queue.
If you only suspect it (a remote is open and a cell is missing), treat it as swallowed. An X-ray is quick. Waiting to see is the one thing you must not do.
Child swallowed a coin: symptoms that decide how urgent it is
Most coins that reach the stomach pass out in the poo without trouble. The risk is a coin that sticks in the food pipe on the way down, or a coin that goes into the airway instead. Here’s how to read the signs:
| What you see | What it may mean | What to do |
|---|---|---|
| Can’t breathe, can’t cry or speak, turning blue | Coin in the airway | Choking first aid now, call 1122 or 112/108 |
| Coughing, noisy breathing, wheeze | Coin may be in the windpipe | Hospital now |
| Drooling, gagging, won’t eat or drink, pointing to throat or chest | Coin stuck in the food pipe | Hospital now |
| Vomiting, tummy pain, blood in vomit or poo | Coin causing trouble lower down | Hospital now |
| No symptoms at all | Probably in the stomach, not certain | Doctor today for an X-ray |
For the choking steps themselves (back blows and thrusts by age), follow our full guide on choking first aid for babies and children. We won’t repeat them here, because a half-remembered version is worse than the proper one.
Why a coin with no symptoms still needs an X-ray
A coin stuck in the food pipe sometimes causes no symptoms for hours. And on a quick look, a button battery and a coin can look alike. On an X-ray, a battery usually shows a double ring (a “halo”), which is how doctors tell them apart. So even a calm, playing child should be checked the same day.
What changes by age
- Under 6 months: rarely picks things up, but older siblings may “feed” them. Any suspected swallowed object needs a doctor today.
- 6 months to 3 years: the peak age. Everything goes in the mouth, and an airway is only about as wide as a drinking straw. Crawlers find coins under sofas and batteries in drawers.
- 3 to 6 years: can often tell you what they swallowed, but may hide it out of fear of a scolding. Stay calm so they tell the truth.
- Over 6: coins in the mouth during games and “tricks”, and older kids copying magnet challenges from videos.
After the doctor says “let it pass”
If the X-ray shows a coin already in the stomach and your child is well, many doctors send you home. What that usually looks like:
- Normal food and drink. There’s no special diet to speed it up, and extra roti, banana or isabgol won’t push it through faster.
- Your doctor may ask you to check nappies or stools, or may not. Follow what they say.
- A repeat X-ray if the coin hasn’t been seen after the time your doctor sets.
- Go back at once for tummy pain, vomiting, fever, blood in the poo, or refusing food.
Most coins pass within a few days to a week. Some take longer, which is why the follow-up plan matters.
A missing battery is a swallowed battery until an X-ray proves otherwise.
Myth: you can remove a swallowed coin at home
Searches for “how to remove swallowed coin from stomach at home” are common, and the honest answer is you can’t, and trying can make it worse. Turning a child upside down and shaking them, putting fingers down the throat, or forcing them to vomit can shift a coin into the airway. Salt water can poison a small child.
The belief sticks because most coins do pass on their own. That’s true. But you only know it’s safe to wait once a doctor has seen where the coin is.
Another myth: “A coin can’t hurt, it’s only metal.” Coins are usually harmless once in the stomach, yes. Stuck in the food pipe, they can cause swelling and ulcers within a day. That’s why drooling and refusing to swallow get treated as urgent.
How to make your home battery-safe
- Walk the house once with a bag: remotes, car keys, kitchen and bathroom scales, thermometers, torches, greeting cards, toys, hearing aids. List every button-battery device.
- Tape battery doors shut with strong tape if they don’t need a screwdriver to open.
- Store spare cells up high in a locked box, in the original child-resistant pack.
- Dead batteries still burn. Put used cells straight into a closed jar out of reach, and recycle them.
- Coins: no piggy banks or coin trays at toddler level, and check under sofa cushions.
- Magnet toys: keep ball-magnet sets out of the house while small children live there.
anything else might have gone down with the object. For swallowed medicines, cleaners or kerosene, follow our guide on poisoning in children: go to hospital and take the packet. For any object, go to emergency care now if there’s breathing trouble, drooling, chest pain, vomiting blood, or a child who is drowsy or floppy. If unsure whether it was a coin or a battery, act as if it was a battery.
A well-stocked kit helps too; see how a child’s first aid kit differs. More safety guides are in Bachon Ki Sehat.
Swallowed coin and battery questions
What to do if a child swallowed a coin?
If they’re choking or can’t breathe, start choking first aid and call 1122 or 112/108. If they’re drooling, gagging or in pain, go to hospital now. If they seem fine, see a doctor today for an X-ray to see where the coin is.
Is swallowing a coin an emergency?
It’s an emergency if there’s breathing trouble, drooling, refusing to swallow, chest or tummy pain, or vomiting. Without symptoms it’s urgent, not an emergency: get it checked the same day.
What are the symptoms of a swallowed coin in a toddler?
Drooling, gagging, refusing food, pointing at the throat or chest, coughing, noisy breathing or vomiting. Some toddlers show no symptoms at all, which is why an X-ray is still advised.
How long does it take for a swallowed coin to pass?
Most pass within a few days to a week once they’ve reached the stomach. Your doctor decides if and when a repeat X-ray is needed. Pain, vomiting or blood in the poo means going back straight away.
What if my child swallowed a button battery but seems fine?
Go to hospital immediately anyway. Battery burns start inside without early symptoms, and damage can begin within about 2 hours. Seeming fine doesn’t mean it’s safe.
Should I make my child vomit after swallowing a battery or coin?
No. Vomiting can pull the object into the airway or drag a battery back past the throat, causing a second burn. Keep the child upright and calm on the way to hospital.
Can I give food or water after my child swallowed a battery?
Not unless a doctor or poison service tells you to. The child may need a procedure under anaesthesia, and an empty stomach makes that safer.
Can swallowing coins kill you?
Rarely, and usually only when a coin blocks the airway, or when a button battery is mistaken for a coin. That’s why breathing trouble and any doubt about batteries get emergency care.
Does eating banana or bread help a coin pass?
No. Extra food doesn’t move a coin faster and can complicate things if it’s stuck. Normal meals are fine once a doctor confirms the coin is in the stomach.
Are dead button batteries dangerous?
Yes. A “dead” cell often has enough charge left to burn tissue. Store used batteries sealed and out of reach until you recycle them.
Why are magnets dangerous if swallowed?
Two or more magnets, or a magnet and a piece of metal, can attract each other through the bowel walls and cause holes. Any suspected magnet swallow needs hospital the same hour.