Post-extraction bleeding refers to persistent or recurrent hemorrhage following tooth extraction beyond the expected physiological hemostatic period. Normally, bleeding stops within 30–60 minutes after extraction due to formation of a stable blood clot within the socket.

Post-extraction hemorrhage most commonly results from:

• Mechanical disturbance of the blood clot by the patient

• Inadequate local hemostasis

• Surgical trauma

• Retained bony or tooth fragments

• Infection

• Underlying systemic bleeding disorders

• Anticoagulant or antiplatelet therapy

Although usually minor, uncontrolled bleeding may progress to hypovolemia, airway compromise, or hemorrhagic shock, especially in medically compromised patients.

Normal Hemostasis After Tooth Extraction

Hemostasis occurs through coordinated mechanisms:

1. Vasoconstriction

2. Platelet aggregation

3. Coagulation cascade activation

4. Fibrin clot stabilization

5. Tissue repair

Failure at any stage results in continued socket bleeding.

Classification of Post-Extraction Bleeding

1. Primary Hemorrhage

Occurs within the first 24 hours after extraction.

Common causes:

• Inadequate compression

• Traumatic extraction

• Local vessel injury

• Hypertension

• Failure of clot formation

2. Reactionary Hemorrhage

Occurs 6–12 hours post-extraction.

Causes:

• Loss of vasoconstrictor effect

• Rise in blood pressure

• Physical activity

• Dislodged clot

3. Secondary Hemorrhage

Occurs after 24 hours.

Usually associated with:

• Infection

• Socket inflammation

• Tissue necrosis

• Foreign body or bone spicule

• Systemic coagulopathy

Pathophysiology

Post-extraction bleeding develops when:

• Local vascular injury exceeds clotting capacity

• Fibrin clot becomes unstable or dislodged

• Platelet dysfunction prevents aggregation

• Coagulation pathway abnormalities impair fibrin formation

Contributing mechanisms include:

Local Factors

• Trauma to gingiva or bone

• Retained root fragments

• Sharp alveolar bone margins

• Infection causing fibrinolysis

• Excessive rinsing or spitting

Systemic Factors

• Thrombocytopenia

• Liver disease

• Renal failure

• Anticoagulant therapy

• Hemophilia

• Vitamin K deficiency

• Disseminated intravascular coagulation (DIC)

Risk Factors

Patient-Related

• Hypertension

• Diabetes mellitus

• Advanced age

• Smoking

• Alcohol use

• Poor compliance with instructions

Drug-Related

• Warfarin

• Heparin

• Direct oral anticoagulants (DOACs)

• Aspirin

• Clopidogrel

• NSAIDs

Surgical Factors

• Multiple extractions

• Impacted teeth surgery

• Prolonged procedure

• Poor surgical technique

Clinical Presentation

Local Signs

• Continuous bleeding from socket

• Blood-filled mouth

• Absence or loss of clot

• Oozing or pulsatile bleeding

• Visible vessel injury

• Inflamed or infected socket

Systemic Signs (Severe Blood Loss)

• Pallor

• Weak pulse

• Tachycardia

• Hypotension

• Dizziness

• Syncope

• Dehydration

• Altered consciousness (late)

Diagnostic Criteria

A bleeding socket is diagnosed when bleeding:

• Persists beyond 30–60 minutes despite compressionOR

• Recurs after initial cessation.

Primary Bleeding Socket

• Active bleeding within 24 hrs

• Clot absent or unstable

• Possible traumatic socket

• Signs of acute blood loss if severe

Secondary Bleeding Socket

• Occurs >24 hrs

• Signs of infection

• Foul smell

• Inflamed tissues

• Tissue breakdown

Clinical Assessment

Immediate Evaluation (ABCDE Approach)

1. Airway — check aspiration risk

2. Breathing

3. Circulation

4. Disability

5. Exposure

History

• Time since extraction

• Drug history

• Previous bleeding episodes

• Liver/kidney disease

• Family bleeding disorders

• Compliance with instructions

Local Examination

• Remove clot carefully

• Identify bleeding source:

  • Soft tissue

  • Bone

  • Vessel

• Look for:

  • Bone spicules

  • Foreign body

  • Infection

Investigations

Indicated in persistent or unexplained bleeding.

Laboratory Tests

• Complete Blood Count (CBC)

• Platelet count

• Prothrombin Time (PT)

• Activated Partial Thromboplastin Time (APTT)

• Bleeding Time (BT)

• INR

• Liver function tests (if indicated)

Management

Management depends on severity and cause.

Emergency Stabilization

Ensure:

• Airway patency

• Hemodynamic stability

• Control active bleeding

Monitor:

• Blood pressure

• Pulse rate

• Oxygen saturation

Non-Pharmacological Management

Step-by-Step Local Control

1. Administer local anesthesia

   • Lignocaine 2% with adrenaline (1:80,000)

2. Suction and remove unstable clot.

3. Identify bleeding source.

4. Manage cause:

   • Remove bone spicule

   • Remove debris

   • Smooth sharp bone edges

5. Apply local pressure.

6. Socket packing using:

   • Oxidized cellulose (Surgicel)

   • Gel foam sponge

   • Collagen plug

   • Thrombin dressing

7. Suturing indicated when:

   • Gingival laceration

   • Large traumatic wound

8. Apply sterile gauze compression for 30 minutes.

Pharmacological Management

Analgesics

Avoid drugs that impair clotting when possible.

• Paracetamol 1 g PO every 8 hours × 3 days

OR

• Ibuprofen 400 mg PO every 8 hours × 3 days

OR

• Diclofenac 50 mg PO every 8 hours × 3 days

Antifibrinolytic Therapy

• Tranexamic acid 500 mg PO/IV every 8 hours (first 24 hrs)or mouthwash form where available.

Fluid Resuscitation

If dehydrated:

• Normal saline 0.9%

• Ringer’s lactate

Blood Transfusion

Indicated when:

• Hemoglobin <7 g/dL

• Ongoing blood loss

• Hemodynamic instability

When to Refer

Urgent referral required if:

• Bleeding persists >24 hrs

• Suspected bleeding disorder

• INR >3

• Hemodynamic instability

• Recurrent hemorrhage

Consult:

• Hematologist

• Physician

• Oral & Maxillofacial surgeon

Complications

• Hypovolemic shock

• Airway obstruction

• Infection

• Delayed healing

• Dry socket

• Anemia

• Hospital admission

Prevention

Pre-Operative Measures

• Detailed bleeding history

• Drug review

• INR testing for anticoagulated patients

• Control hypertension

• Treat infection prior to extraction

Intra-Operative Measures

• Atraumatic technique

• Adequate curettage

• Proper socket compression

• Achieve primary hemostasis

Post-Operative Instructions to Patient

• Bite gauze for 30 minutes

• Do NOT rinse for 12–24 hrs

• Avoid spitting

• Avoid hot food/drinks

• No smoking/alcohol

• Avoid strenuous activity

• Sleep with head elevated

Special Considerations

Patients on Anticoagulants

Extraction usually safe if:

• INR ≤3 (per guideline)

• Local hemostatic measures applied

Drug discontinuation should NOT be routine without physician advice.

Patients with Bleeding Disorders

Require:

• Pre-operative hematology consultation

• Factor replacement therapy

• Tranexamic acid protocol

Prognosis

With prompt local management, most cases resolve successfully. Delayed recognition increases risk of systemic complications.

Key Clinical Pearls

• Most post-extraction bleeding is local, not systemic.

• Always reassess airway first.

• Compression remains the most effective initial treatment.

• Persistent bleeding mandates coagulation testing.