Choking First Aid for Adults: Back Blows and Abdominal Thrusts

Choking first aid comes down to one decision made in the first few seconds: is the airway partly blocked or completely blocked? A person who can still cough, speak or breathe noisily has a partial blockage and usually needs encouragement, not intervention. A person who cannot make any sound has a severe blockage and needs help immediately. This guide explains how to tell the difference and how to respond using the current sequence of back blows and abdominal thrusts.

Mild Choking Versus Severe Choking

Mild choking means air is still moving. The person can cough forcefully, talk, or cry out, and may wheeze or make a high-pitched noise as they breathe in. Coughing is the body’s most effective way of clearing the airway, so the correct action is to stay with them, encourage them to keep coughing, and avoid slapping their back, which could move the object into a worse position.

Severe choking means the airway is blocked enough that little or no air moves. Look for:

• Inability to speak, cough or breathe
• Hands clutched at the throat
• A silent, panicked expression
• Blue or grey colour around the lips and face
• Weakness, then collapse and loss of consciousness if the blockage is not cleared

Choking First Aid Steps for a Conscious Adult

1. Confirm and call for help. Ask “Are you choking?” If they nod and cannot speak, send someone to call the emergency number. If you are alone, begin the steps below straight away and call as soon as you can, using speaker mode if possible.
2. Position yourself. Stand slightly behind and to one side. Support the upper chest with one hand and lean the person well forward so that a dislodged object falls out of the mouth rather than back down the airway.
3. Give five back blows. Use the heel of your other hand to strike firmly between the shoulder blades. Make each blow a separate, deliberate attempt to clear the blockage.
4. Give five abdominal thrusts. Stand behind the person, place a clenched fist just above the navel with the thumb side against the abdomen, and cover it with your other hand. Pull sharply inward and upward, five times.
5. Alternate five and five. Keep cycling between back blows and abdominal thrusts until the object comes out, the person starts to breathe or cough effectively, or they become unresponsive.

The back-blows-first sequence reflects updated resuscitation guidance published in 2025, which brought the approach into line with international practice.

Adapting Choking First Aid for Pregnancy and Self-Help

If the person is visibly pregnant or you cannot reach around their abdomen, give chest thrusts instead of abdominal thrusts, placing your hands on the lower half of the breastbone and pulling straight back. A person who is choking while alone can lean over the back of a chair or a counter edge and press the upper abdomen firmly against it in a quick inward and upward movement, and should seek help as soon as possible.

When the Person Becomes Unresponsive

If a choking adult stops responding, lower them safely to the ground, make sure the emergency services have been called, and start CPR. Each time you open the airway to give breaths, look into the mouth and remove an object only if you can actually see it. Compressions can help move the blockage even before breaths succeed. Follow our guides to CPR for adults and airway management for the detailed technique.

What Not to Do During Choking First Aid

• Do not slap the back of someone who is coughing forcefully or speaking.
• Do not use blind finger sweeps. Reaching into the throat can push an object deeper or cause injury.
• Do not give water, bread or other food to “wash it down”.
• Do not turn an adult upside down or shake them.

Some older training manuals still describe lateral chest thrusts and routine finger sweeps for adults. Current guidance has moved away from both, so check that your training material is up to date.

After Choking First Aid: Medical Follow-Up

Anyone who needed abdominal thrusts or became unresponsive should be checked by a doctor even if they feel fine, because thrusts can bruise or injure internal organs and small fragments can remain in the airway. Seek medical help too if there is a persistent cough, noisy breathing, difficulty swallowing or the feeling that something is still stuck.

Reducing the Risk at Work and at Home

Choking is most often linked to food eaten quickly or while talking or laughing. Cut food into manageable pieces, chew thoroughly, and take extra care with people who have swallowing difficulties. Workplaces with canteens or kitchens should make sure at least one trained first aider is on every shift and that the emergency number is visible near the serving area.

Frequently Asked Questions

Should I call the ambulance before or after helping a choking adult?
If someone else is present, have them call while you help. If you are alone, start the back blows and thrusts first and call as soon as you can, because the first minute matters most.

Is the Heimlich manoeuvre still used?
Yes. Abdominal thrusts remain part of choking first aid, but current guidance places five back blows before them and alternates the two.

Can a person who is coughing still be in danger?
Yes. If the cough becomes weak, the person cannot speak, or they start to turn blue, treat it as severe choking and begin back blows and thrusts.

References and Further Reading

• American Heart Association and American Red Cross, Guidelines for First Aid
• Mayo Clinic, Choking: First Aid
• American Red Cross, Adult and Child Choking

Last updated: September 2026
Prepared by: EHS Guidelines Editorial Team

This article is general educational information and is not a substitute for accredited first aid training or professional medical care. In an emergency, call your local emergency number immediately. Emergency numbers, medicines and protocols differ between countries, so follow local guidance.

Related Guides

• Infant Choking First Aid: Back Blows and Chest Thrusts for Babies and Children
• Airway Management: How to Open, Clear and Protect an Airway
• CPR for Adults: Current Technique and Compression Ratios
• Recovery Position: A Step by Step Guide
• DRABC Primary Survey: The Basic Life Support Flow Chart Explained