A blocked nose is often dismissed as a nuisance – a lingering cold or a flare-up of hay fever. But when you’re dealing with nasal obstruction on one side that doesn’t seem to go away, it could indicate something more serious.
Whether it’s a deviated septum, nasal polyps or a rarer underlying condition like a tumour, persistent one-sided nasal blockage shouldn’t be ignored.
What causes one-sided nasal blockage?
Several conditions can lead to a blocked nostril on one side. Identifying the root cause is key to effective treatment.
Structural problems (deviated septum)
The septum is the cartilage and bone that divides your nasal cavity. If it’s deviated (crooked or bent), it can obstruct airflow through one side of the nose. This is often something you’re born with or a result of injury.
A deviated septum specialist may recommend surgery (septoplasty) if it’s causing significant symptoms.
Nasal polyps
Nasal polyps are soft, non-cancerous growths that can form in the lining of the nasal passages or sinuses. While they more commonly affect both sides, a large polyp can block just one. If you’re seeking help with nasal polyps, early diagnosis and treatment are important to prevent further sinus problems.
Learn more about managing your risk of nasal polyps.
Foreign bodies (especially in children)
Young children might insert small objects into their noses without anyone noticing. This can cause a sudden, foul-smelling nasal discharge and blockage on one side.
Infections and inflammation
Chronic or acute sinusitis or inflammation can cause swelling that narrows the nasal passage. This can be especially noticeable if it affects one side more than the other.
Tumours
Though rare, tumours – both benign (non-cancerous) and malignant (cancerous) – can develop in the nasal passages. These may cause persistent nasal blockage on one side, nosebleeds or facial pain. Early detection makes a real difference in how successful treatment is, so don’t delay a consultation if symptoms persist.
Blocked nose symptoms that warrant a closer look
You should see a specialist if your blocked nose symptoms include:
- A blocked nose on one side lasting more than three weeks
- Blood-stained nasal discharge
- Facial pain or swelling
- Reduced or altered sense of smell
- Persistent post-nasal drip (mucus dripping down the back of your throat)
Consulting an ear, nose and throat (ENT) specialist for a blocked nose provides access to expert assessment, including nasal endoscopy and imaging when needed. These diagnostic tools help accurately identify the underlying cause and guide effective treatment.
Getting the right diagnosis
At ENT Sheffield, your assessment begins with a comprehensive consultation. This includes taking a detailed medical history to understand the duration, pattern and impact of your symptoms. A physical examination of the nose is then carried out to identify any obvious abnormalities or signs of inflammation.
To gain a clearer view of the internal nasal structures, a nasal endoscopy may be performed. This involves using a thin, flexible camera to examine the nasal passages and sinuses in detail. It’s a quick and minimally uncomfortable procedure that provides valuable insight into the possible causes of obstruction.
If further evaluation is needed, imaging such as a computed tomography (CT) scan can be arranged. This is especially helpful for identifying deeper structural issues like a deviated septum, sinus disease or the presence of masses such as tumours, which may not be visible during an endoscopic exam.
Treating a one-sided nasal blockage
Once a diagnosis is confirmed, treatment is tailored to your specific condition. For inflammatory causes, medical management may include nasal steroid sprays, antihistamines (medicines to help calm allergies) or decongestants. If polyps, foreign bodies or other obstructions are present, a minor procedure may be performed to remove them and restore clear airflow.
In more complex cases, such as a significantly deviated septum or large polyps, surgical intervention might be recommended. This could involve septoplasty to correct the nasal septum or functional endoscopic sinus surgery (FESS) to address sinus blockages and remove polyps.
Every treatment plan is designed to improve breathing, alleviate symptoms and enhance your quality of life.
Book a consultation with ENT Sheffield today.
Mr Wale Olarinde, an experienced ENT specialist, offers expert diagnosis and treatment for nasal conditions across Sheffield, Chesterfield and North Derbyshire. Whether you’re concerned about nasal polyps, a deviated septum or something more complex, you’ll receive personalised care aimed at lasting relief.
Contact ENT Sheffield today, and we’ll provide you with the dedicated support you need.