Nosebleeds (Epistaxis): Symptoms, Causes & When to See a UK Doctor

Nosebleeds, medically known as epistaxis, are a common occurrence for many people in the UK. The lining of the nose is rich with tiny, fragile blood vessels that sit close to the surface, making them easily susceptible to damage. While most nosebleeds are not a cause for serious concern, they can be distressing and inconvenient.

Doctors generally categorise nosebleeds into two types: anterior and posterior. Anterior nosebleeds originate from the front of the nose, specifically a region called Little’s area on the nasal septum. This is where several arteries meet, and it is responsible for approximately 90% of all cases. Posterior nosebleeds occur much further back and higher up in the nasal cavity. These are rarer but tend to be heavier and more common in older adults, often requiring medical intervention at an A&E department.

There are numerous reasons why you might experience a nosebleed. In the UK, environmental factors often play a large role. Common triggers include:

• Dry Air: Central heating during British winters can dry out the nasal membranes, causing them to crack and bleed.
• Nose Picking or Blowing: Physical trauma to the delicate lining is a primary cause of anterior epistaxis.
• Allergic Rhinitis (Hay Fever): Inflammation caused by allergies can make the vessels more prone to bursting, especially when combined with frequent sneezing.
• Medication: Blood-thinning medicines such as aspirin, warfarin, or anticoagulants (DOACs like apixaban) increase the risk of prolonged bleeding.
• Nasal Sprays: Overuse of certain medicated nasal sprays or incorrect technique when using steroid sprays can irritate the septum.

According to NHS and NICE guidance, systemic issues like high blood pressure or blood clotting disorders can also contribute to recurrent episodes, though these are less common causes of isolated bleeds.

When a nosebleed starts, it is vital to follow the correct first-aid procedure to encourage clotting. Many people mistakenly lean their head back; however, this causes blood to trickle down the throat, which can lead to nausea or vomiting.

The Correct Technique:

• Sit up straight: Do not lie down. Staying upright reduces the blood pressure in the veins of the nose.
• Lean forward: Tilt your head slightly forward so the blood drains out of your nostrils rather than your throat.
• Pinch the nose: Use your thumb and index finger to firmly pinch the soft part of your nose (just below the bony bridge).
• Maintain pressure: Keep pinching for at least 10 to 15 minutes without letting go to check if it has stopped. Use a clock to ensure you provide adequate time.
• Use an ice pack: Placing a covered ice pack on the bridge of the nose may help constrict the blood vessels further.

After the bleeding has stopped, the area will be sensitive. A clot will have formed, and it is essential not to disturb it. For at least 24 hours after a nosebleed, you should avoid blowing your nose, picking your nose, or lifting heavy objects. Straining can increase the pressure in the vessels of the head and cause the bleed to restart.

If you suffer from frequent nosebleeds due to dry air, your GP or an online doctor might recommend applying a small amount of an emollient or antiseptic cream (such as Naseptin) inside the nostrils to keep the lining moist and reduce crusting. If hay fever is the trigger, managing your allergy symptoms effectively is the best way to prevent future epistaxis.

If you are experiencing recurrent nosebleeds—defined as happening more than once a week—it is advisable to speak to a doctor. While these episodes may be minor, a GP can help identify underlying triggers or refer you for further treatment.

An online doctor UK consultation is a convenient way to discuss your history. During a video or phone appointment, the clinician can review your current medications, check for signs of anaemia if the bleeds are frequent, and provide advice on nasal hygiene. If the bleeding is regularly occurring from the same side, a physical examination or a referral to an ENT (Ear, Nose, and Throat) specialist may be necessary to consider nasal cautery. This is a simple procedure where the problematic blood vessel is sealed using a chemical stick (silver nitrate) or heat.

NICE (National Institute for Health and Care Excellence) guidelines suggest that for patients over 40 who have persistent, one-sided nosebleeds, further investigation is required to rule out more serious causes, such as nasal polyps or, very rarely, tumours. Most patients, however, will be managed in primary care with topical treatments. If you are taking blood thinners and experience frequent bleeds, your GP may need to check your dosage or blood levels (such as an INR test for warfarin) to ensure you are within the safe therapeutic range.