Baby Choking: First Aid Step by Step
What should you do when an infant chokes on food or small objects? This article explains back blows and chest thrusts for babies in clear, easy-to-understand language for parents and caregivers – with step-by-step instructions and guidance on when to call emergency services.

Author: Dr. med. univ. Daniel Pehböck, DESA
Specialist in Anesthesiology and Intensive Care Medicine, AHA-certified ACLS/PALS Instructor, Course Director Simulation Tirol
Reading time approx. 9 min

It often happens faster than you can react: your baby grabs a small object, puts it in their mouth – and suddenly they're coughing hard, gasping for air, or going silent. A swallowed foreign body or a piece of food that enters the airway is one of the most common emergencies in infants. Because babies explore their world through their mouths, this risk is particularly high in the first year of life. The good news: with the right knowledge and a few targeted actions, you can effectively help your child in this situation. This article explains step by step what to do – calmly, clearly, and in a way you can recall in an emergency.
Why Babies Choke So Easily
Babies and toddlers are particularly at risk of choking for several reasons:
- Everything goes in the mouth. This isn't misbehavior – it's a normal developmental stage. Babies explore objects with their lips and tongue, and that's part of healthy development.
- The airways are very narrow. In an infant, the trachea is roughly the diameter of a drinking straw. Even small pieces can block it.
- Chewing and swallowing are still immature. Babies only gradually learn to break down food properly and swallow in a coordinated way. Especially when introducing solid foods, it can easily happen that something "goes down the wrong way."
- Molars are missing. Without molars, babies can't properly chew solid food. Round, smooth, or hard foods like grapes, nuts, raw carrot pieces, or sliced sausages are therefore particularly risky.
Common foreign bodies that cause problems include, in addition to food pieces, coins, button batteries (small batteries), marbles, beads, Lego bricks, balloon fragments, and bottle caps.
Choking vs. Suffocating – The Critical Difference
First, it's important to distinguish between two situations:
When your baby is coughing and gagging
If your baby is coughing forcefully, gagging, or making noise, then the body is actively working to clear the foreign body on its own. The cough reflex is the most effective mechanism nature has provided for this.
What you should do now:
- Stay calm.
- Let your baby cough. Support them by leaning them slightly forward.
- Do not blindly reach into the mouth to pull the object out – you could push it deeper.
- Watch carefully to see if the situation improves.
In most cases, the body manages on its own. As long as your baby is coughing forcefully and breathing, that's a good sign.
When your baby is no longer breathing properly
It's a completely different situation when the foreign body blocks the airway so much that little or no air can get through. You can recognize this by the following warning signs:
- The cough becomes weak, quiet, or stops altogether.
- Your baby is no longer making breathing sounds, or only a faint whistling sound.
- The lips or face turn bluish.
- Your baby cannot cry or scream.
- They appear panicked, clutch at their throat, or become limp.
This is a life-threatening emergency. You must act immediately.
First Aid Step by Step: Back Blows and Chest Thrusts
The following instructions apply to infants – babies in their first year of life. The technique differs significantly from the approach for older children or adults because a baby's body is much more delicate.
Step 1 – Organize the Emergency Call
If you're not alone, immediately ask a second person to call emergency services at 144 (in Austria). If you're alone with the baby, start with first aid measures first. After the first cycle (5 back blows and 5 chest thrusts), call emergency services – ideally on speakerphone so you can continue helping.
Step 2 – Position the Baby Correctly (for Back Blows)
- Sit down or prop one leg up so your thigh serves as a support surface.
- Place your baby face-down on your forearm. The head should point downward and be lower than the body – gravity helps dislodge the foreign body.
- Support the head by holding your baby's lower jaw and cheeks with your hand. Important: Do not press on the soft throat – hold the bony lower jaw.
- Rest the forearm with the baby on your thigh so you are stable and not shaking.
Step 3 – Give Five Back Blows
- Strike five times firmly between your baby's shoulder blades with the heel of your hand.
- "Firmly" means: noticeably harder than a gentle pat, but of course proportionate to the size of the baby. The blows need enough force to dislodge the foreign body. Blows that are too timid won't achieve anything.
- Strike with purpose, in quick succession, each as a distinct, deliberate blow.
- After each blow, briefly check whether the foreign body is visible in the mouth or whether your baby starts coughing or breathing again.
Step 4 – Turn the Baby Over (for Chest Thrusts)
If the five back blows haven't dislodged the foreign body:
- Hold your baby securely between both forearms – one hand supports the back and the back of the head, the other supports the jaw and chest.
- Carefully turn your baby onto their back so they are now lying face-up on your forearm.
- The head remains lower than the body.
- Rest this forearm on your thigh as well to stay stable.
Step 5 – Give Five Chest Thrusts
The term "chest thrusts" sounds complicated, but it simply means: you press deliberately on the chest to increase pressure in the airways and force the foreign body out.
- Place two fingers (index and middle finger) on your baby's breastbone. You can find the correct spot by drawing an imaginary line between the nipples – your fingers go just below this line on the breastbone.
- Press five times briskly and firmly downward. The compression depth is about one-third of the chest diameter – that's roughly 4 centimeters. This feels more forceful than you might expect. Don't be afraid.
- Between thrusts, allow the chest to fully return to its resting position.
- These are not rapid CPR compressions, but individual, firm, distinct thrusts delivered one at a time.
Step 6 – Repeat the Cycle
If the foreign body has not been dislodged after five back blows and five chest thrusts:
- Start again with five back blows (Step 3).
- Then another five chest thrusts (Step 5).
- Continue this alternating cycle until the foreign body comes out, your baby coughs forcefully again, cries, or breathes – or until emergency services arrive.
When the Foreign Body Becomes Visible
If you can see the object in your baby's mouth, you can carefully remove it with one finger. But only if you can truly see it and grasp it. Blindly poking around in the mouth can push the foreign body deeper into the airway and make the situation worse.
What to Do If the Baby Becomes Unconscious
It can happen that a baby loses consciousness during a severe airway obstruction. This is frightening, but you can still help.
- Place the baby on a firm surface (floor, table).
- Check for breathing: Hold your ear over the baby's mouth and nose while watching the chest at the same time. Can you hear breathing sounds? Is the chest rising? This check should take no longer than 10 seconds.
- If there is no normal breathing: Begin baby CPR.
- 5 initial rescue breaths: Tilt the baby's head back very slightly (only into the so-called "sniffing position" – not as far back as for adults). Cover the baby's mouth and nose with your mouth at the same time and gently blow air in five times. You only need a small amount of air – just enough to see the chest visibly rise.
- 30 chest compressions: Press with two fingers on the breastbone (same spot as for the chest thrusts), but now quickly and rhythmically – about 100 to 120 times per minute.
- Then alternate: 2 rescue breaths – 30 chest compressions, continuously.
- After one minute of CPR: If you haven't called emergency services yet, do it now. Then immediately continue CPR.
Important: With every rescue breath, look into the mouth – if the foreign body has now become visible, carefully remove it.
When Should You Always Call Emergency Services?
Call emergency services at 144 (in Austria), 112 (Europe-wide), or your local emergency number when:
- Your baby is no longer breathing properly, is turning blue, or loses consciousness.
- The back blows and chest thrusts are not dislodging the foreign body.
- You're unsure whether the foreign body has been completely removed.
- Your baby has a noticeable cough after the incident, is hoarse, has wheezing breaths, or sounds different than usual.
- It involves a dangerous object (e.g., button battery, sharp-edged parts).
Even if the situation improves quickly, a medical check-up is advisable after every serious choking incident. Small fragments may remain in the airways, or the mucous membranes may have been injured.
Common Mistakes to Avoid
- Hitting too gently. Many parents are afraid of hurting their baby. That's understandable. But blows that are too weak can cost your child's life, while firm blows can save it. Slight redness on the back is harmless compared to a blocked airway.
- Holding the baby upside down by the feet and shaking. You sometimes see this in movies – in reality, it's dangerous and ineffective. You have no control over the head, and the cervical spine can be injured.
- Blindly reaching into the mouth. As already described: only remove what you can see.
- Using the Heimlich maneuver (abdominal thrusts) on infants. This technique is intended for adults and older children. In babies under one year, it can cause severe internal injuries. Instead, the chest thrusts described above are performed on the chest.
- Waiting too long. When the cough becomes weak and the skin changes color, every second counts.
Prevention: How to Reduce the Risk
You can't completely prevent choking in babies, but you can significantly reduce the risk:
- Prepare food in an age-appropriate way. Always cut grapes, cherry tomatoes, and similar round foods lengthwise (and ideally quarter them). Avoid whole nuts, hard raw vegetables, and sticky sweets in the first year of life.
- Remove small objects from reach. A good rule of thumb: anything that fits through a toilet paper roll is potentially dangerous for a baby.
- Always stay present during meals. Never leave your baby unsupervised while eating – not even "just for a moment."
- Check toy age ratings. Older siblings often have toys with small parts. Make sure these stay out of the baby's reach.
- Secure button batteries carefully. These small batteries are extremely dangerous because they can cause severe chemical burns in the esophagus – even if they are "only" swallowed and not inhaled. Regularly check remote controls, musical greeting cards, and small electronic devices.
- Let them eat upright. Your baby should sit upright and stable while eating – not eat while lying down or walking around.
Key Points at a Glance
- Strong cough → Wait and observe. The body is helping itself.
- Weak or no cough, blue lips, no crying → Act immediately.
- 5 back blows → 5 chest thrusts → Repeat.
- Baby unconscious → Begin CPR (5 rescue breaths, then 30:2).
- Emergency call 144 / 112 → As early as possible.
- Don't blindly reach into the mouth. No Heimlich maneuver on babies.
Hands-On Training
Reading an article is an important first step – but in a real emergency, practiced skills determine the outcome. Back blows, chest thrusts, and baby CPR are techniques best learned on a training manikin when you practice them yourself under professional guidance. In the baby CPR course from Simulation Tirol, you practice exactly these techniques step by step, receive direct feedback on compression depth and technique, and gain the confidence you need in an emergency. The course is designed for parents, grandparents, midwives, childcare providers, and anyone who regularly looks after babies and toddlers.
Want to practice this hands-on?
In our Baby-Reanimationskurs you practice this topic hands-on with high-tech simulators and experienced instructors.
More Articles
Respiratory Distress Syndrome in Newborns: Causes and Initial Management
Transient tachypnea, meconium aspiration, and surfactant deficiency – how healthcare professionals and parents can distinguish the most common causes of neonatal respiratory distress and which immediate measures can be lifesaving.
Airway Obstruction in Infants: Back Blows and Chest Thrusts
Detailed lay-rescuer guide for choking emergencies in babies under 1 year: positioning, blow technique, alternating measures, and when to call emergency services.
Baby Not Breathing: Infant CPR for Laypeople
A clear, easy-to-understand guide to cardiopulmonary resuscitation (CPR) for babies under one year of age. This article explains how to check breathing, perform rescue breaths, and give chest compressions with the correct hand position – specifically designed for parents and grandparents with no medical background.

