Bleeding after a tooth extraction
- Emergency
Most bleeding after an extraction stops with firm pressure on gauze. Bleeding that does not stop needs a look for local causes and for clotting problems.
What it is
Some oozing is normal for several hours after an extraction. Persistent or recurrent bleeding usually has a local cause: the patient rinsing or spitting and dislodging the clot, poking the socket, a torn gum or a bleeding vessel in the bone. Systemic causes include anticoagulants and antiplatelet drugs, inherited bleeding disorders (von Willebrand disease, haemophilia), liver disease, thrombocytopenia and leukaemia. Bleeding that restarts a day or more later can be due to infection of the socket.
How to recognise it
- First-line: firm, continuous pressure with a folded damp gauze bitten on the socket for twenty to thirty minutes, without checking.
- Tranexamic acid, as a soaked gauze or mouthwash, helps local haemostasis.
- Local measures by the dentist: haemostatic packing in the socket and sutures.
- Ask about anticoagulants, antiplatelets, liver disease, family history and easy bruising.
- First unexplained heavy bleeding after an extraction can reveal von Willebrand disease or mild haemophilia.
What to do at once
- Sit the patient up, clear clots from the mouth gently and find the bleeding point.
- Place a folded damp gauze over the socket and ask the patient to bite firmly for twenty to thirty minutes.
- If bleeding continues, use gauze soaked in tranexamic acid and repeat the pressure.
- Check vital signs and estimate loss; obtain a blood count and coagulation tests (INR if on warfarin) if bleeding is heavy, persistent or unexplained.
- Arrange packing and suturing of the socket by a dentist or oral surgeon.
Costly mistakes
- Stopping an anticoagulant on one's own to prevent dental bleeding risks stroke or thrombosis; local measures usually suffice.
- Large volumes swallowed can cause vomiting of blood that looks like a gastrointestinal bleed.
- Haemophilia patients need factor replacement planned with haematology, not only local measures.
Next step / Initial management
- Advise no rinsing, spitting, hot drinks, smoking or exercise on the first day; soft food on the other side.
- Persistent bleeding despite pressure: refer to the dentist or emergency department for packing and sutures; check INR and blood count.
- Suspected bleeding disorder: refer to haematology; plan future extractions with them.
- Heavy bleeding with haemodynamic changes: emergency referral.
Test yourself
Think of the answer, then tap the question to see it.
What is the first step to control bleeding after an extraction?
Firm continuous pressure with damp gauze bitten over the socket for twenty to thirty minutes.
Which local agent helps control post-extraction bleeding?
Tranexamic acid, on gauze or as a mouthwash.
Which inherited disorder is commonly first revealed by bleeding after an extraction?
Von Willebrand disease (or mild haemophilia).
Connections
Educational content; it does not replace assessment by a dentist or doctor and is not a clinical instruction. For facial or neck swelling with difficulty swallowing or breathing, a knocked-out tooth or bleeding that will not stop, go to an emergency department at once.
Sources: Oral Surgery, Extraction of Teeth (StatPearls Publishing (NCBI Bookshelf), 2023); Bleeding Disorders (StatPearls Publishing (NCBI Bookshelf), 2023); Von Willebrand disease (MedlinePlus, US National Library of Medicine, 2026); Warfarin (MedlinePlus, US National Library of Medicine, 2026).
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Representative model, for educational purposes only.