Epistaxis – Nosebleed: Causes and Treatment
Epistaxis is the medical term for a nosebleed. It is a very common condition that is usually harmless but can sometimes indicate a more serious underlying condition.
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Epistaxis is the medical term for a nosebleed. It is a very common condition that is usually harmless but can sometimes indicate a more serious underlying condition.
What is Epistaxis?
Epistaxis is the medical term for a nosebleed, referring to bleeding from the blood vessels lining the nasal cavity. It is one of the most frequently encountered ENT (ear, nose, and throat) complaints and can affect people of all ages. While most nosebleeds are benign and self-limiting, some cases may indicate an underlying medical condition requiring further evaluation.
Causes
Epistaxis can be caused by a wide range of local and systemic factors:
Local Causes
- Dry nasal mucosa due to low humidity or cold air
- Nose picking or forceful blowing of the nose
- Upper respiratory tract infections and colds
- Foreign bodies in the nasal cavity (particularly in children)
- Nasal trauma or injury
- Deviated nasal septum
- Nasal polyps or tumors
Systemic Causes
- High blood pressure (hypertension)
- Blood clotting disorders such as hemophilia or thrombocytopenia
- Use of anticoagulant medications (e.g., aspirin, warfarin)
- Liver or kidney disease
- Hereditary conditions such as Hereditary Hemorrhagic Telangiectasia (HHT)
Symptoms
The primary symptom of epistaxis is bleeding from one or both nostrils. Depending on the location of the bleeding source, it is classified as:
- Anterior epistaxis: Blood flows forward and out of the nostril. This is the most common type and typically less severe.
- Posterior epistaxis: Blood flows backward into the throat, which can be more serious and harder to control.
Additional symptoms may include a taste of blood in the mouth, nausea from swallowing blood, or dizziness in cases of significant blood loss.
Diagnosis
Diagnosis of epistaxis is primarily clinical. A healthcare provider will perform a thorough examination to identify the bleeding source and any underlying causes. Diagnostic steps may include:
- Medical history and physical examination
- Blood pressure measurement
- Laboratory tests including a complete blood count and coagulation studies
- Nasal endoscopy for recurrent or severe cases
Treatment
Most nosebleeds can be managed at home with simple first-aid measures:
- Sit upright and lean slightly forward (not backward) to prevent blood from flowing into the throat
- Pinch the soft part of the nose firmly for 10 to 15 minutes
- Apply a cold compress to the nose or back of the neck
For persistent or severe bleeding, medical intervention may be required, including:
- Nasal packing: Insertion of gauze or special packing materials to apply pressure and stop the bleed
- Chemical or electrical cauterization: Sealing of the bleeding vessel using silver nitrate or electrocautery
- Topical hemostatic agents: Medications applied locally to aid clotting
- Surgical intervention: In rare, severe cases, ligation or embolization of supplying blood vessels may be necessary
When to Seek Medical Attention
Medical attention should be sought in the following situations:
- Bleeding does not stop after 20 to 30 minutes of first-aid measures
- There is a large volume of blood loss
- The nosebleed follows a head injury or trauma
- The patient has a known bleeding disorder or is taking blood thinners
- Nosebleeds recur frequently without an obvious cause
References
- Schlosser RJ. Epistaxis. New England Journal of Medicine. 2009;360(8):784-789.
- Thornton MA, Mahesh BN, Lang J. Epistaxis. BMJ Clinical Evidence. BMJ Publishing Group, 2015.
- Tunkel DE et al. Clinical Practice Guideline: Nosebleed (Epistaxis). Otolaryngology - Head and Neck Surgery. 2020;162(1_suppl):S1-S38.
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