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What to do if…
a deep cut is bleeding heavily and will not stop

Produced and maintained by PanicStation.org Published: Last reviewed: Editorial policy USA guide

Short answer

Call 911 now and put the phone on speaker. Press firmly and continuously on the cut with gauze or a clean cloth; for life-threatening bleeding from an arm or leg, use a commercial tourniquet if one is available and follow its instructions or the 911 dispatcher’s directions.

Do not do these things

  • Do not delay calling 911 while you clean the cut, search for ideal supplies, or arrange your own transport.
  • Do not repeatedly lift the cloth or dressing to check the wound.
  • Do not remove an object lodged in the cut; press around it instead.
  • Do not probe, scrub, or pour antiseptic into a large bleeding wound.
  • Do not remove the original dressing when blood soaks through it.
  • Do not use a limb tourniquet anywhere except an arm or leg, or place one over a joint.
  • Do not loosen or remove a tourniquet after it has been applied.
  • Do not enter traffic, approach moving machinery, or handle broken glass until the immediate hazard is controlled.

What to do now

  1. Move away from any immediate hazard if you can do so safely. Call 911, say there is a deep cut with heavy bleeding that will not stop, and give the exact location.
  2. Put on disposable gloves if they are immediately available, but do not delay care while looking for them. Expose enough of the area to find where the blood is coming from.
  3. Place sterile gauze, a clean cloth, or clean clothing directly over the cut. Press down firmly and continuously with both hands if possible.
  4. Keep pressing without lifting the original dressing. If it soaks through, you may place one additional gauze pad on top; do not build up a stack of pads. Keep firm direct pressure.
  5. If an object is stuck in the wound, leave it in place. Apply pressure around the object rather than directly on it.
  6. If the cut is on an arm or leg and the bleeding is life-threatening, apply a commercial tourniquet two to three inches above the wound, between the wound and the torso, and not over a joint. Tighten it until the bleeding stops, secure it, note the time if possible, and do not loosen it.
  7. If the first tourniquet is fully tightened but bleeding continues, place a second commercial tourniquet above the first, closer to the torso, if one is available.
  8. Have the injured person lie down if it is safe, keep them warm, and limit unnecessary movement. Tell the dispatcher immediately if they become pale, clammy, confused, dizzy, very weak, unresponsive, or stop breathing normally.
  9. Continue pressure and follow the 911 dispatcher’s instructions until emergency medical services take over.

What can wait

Cleaning the wound, deciding whether it needs stitches, checking tetanus vaccination records, replacing clothing, taking photographs, arranging insurance details, and working out how the injury happened can all wait. The immediate priorities are calling 911 and controlling the bleeding.

Important reassurance

Heavy bleeding can be frightening, but you only need to focus on a few immediate actions: call 911, maintain uninterrupted firm pressure, and use a tourniquet for life-threatening arm or leg bleeding when appropriate. The wound does not need to look clean before emergency help arrives.

Scope note

This guide covers immediate first aid while emergency medical help is on the way. Examination, wound closure, infection prevention, tetanus assessment, and later treatment decisions require medical professionals.

Important note

This is general first-aid information, not a medical diagnosis or a substitute for emergency care. Instructions from the 911 dispatcher and responding emergency personnel take priority.

Additional Resources

Closely connected guides that may be useful during the same situation or its immediate aftermath.

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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