The symptoms of a deviated septum are more widespread than most people realize. A large share of people have some degree of septal deviation, according to the Mayo Clinic, but only a fraction experience symptoms severe enough to affect their quality of life. If you have been dealing with chronic nasal congestion, difficulty breathing through your nose, or recurrent sinus infections, understanding the symptoms of a deviated septum can help you decide whether an evaluation is worthwhile. This page is part of our medical conditions guide.
This guide covers what a deviated septum is, the symptoms it can cause, how doctors diagnose it, which symptoms can often be managed without surgery, and when septoplasty becomes worth considering. A key theme throughout: treatment is guided by your symptoms and how much they affect your life, not simply by whether a scan shows a crooked septum.
What Is a Deviated Septum?
The nasal septum is the wall of cartilage and bone that divides your nose into two nostrils. Ideally it runs straight down the center, creating two roughly equal air passages. A deviated septum occurs when this wall is displaced to one side, making one nasal passage narrower than the other.
A deviated septum can be present from birth, based on how the nose developed, or it can result from injury. Trauma during contact sports, car accidents, or falls is a common cause, and some deviations become more noticeable with age as nasal structures change. The degree matters enormously: a mild deviation may be entirely symptom-free, while a severe one can block airflow on one side almost completely.
Primary Symptoms of a Deviated Septum
Not everyone with a deviated septum has symptoms. In fact, many people never know they have one. But when the deviation is significant enough to disrupt airflow, several hallmark symptoms tend to develop.
Nasal Congestion and Obstruction
The most common symptom is persistent congestion or a blocked feeling, usually worse on one side. The obstruction may be constant or may seem to alternate between sides. It often worsens during colds or allergy flare-ups, when nasal tissues swell and compound the structural narrowing. Some people find they can breathe comfortably through only one nostril.
Difficulty Breathing Through the Nose
People with a significant deviation often resort to mouth breathing, particularly during exercise or sleep. This is more than an inconvenience: chronic mouth breathing can contribute to a dry mouth, sore throat, and poorer sleep. The nose humidifies, warms, and filters incoming air, so bypassing it reduces those protective functions.
Recurrent Sinus Infections
A deviated septum can impede sinus drainage, creating conditions where infections take hold more easily. People with significant deviations may experience repeated sinus infections or chronic sinusitis that lingers for many weeks. The CDC notes that sinusitis affects a large number of U.S. adults each year, and structural nasal factors are one recognized contributor among several.
Nosebleeds
The narrower side of a deviated septum may have drier, more exposed mucosal surfaces prone to cracking and bleeding. Frequent nosebleeds, especially from the same nostril, can be associated with septal deviation because altered airflow dries the nasal lining unevenly. (The medical term for nosebleeds is epistaxis.)
Snoring and Sleep Disruption
Nasal obstruction from a deviated septum is a common contributor to snoring, because a narrowed airway produces turbulent airflow and vibration. In some cases a deviated septum can worsen obstructive sleep apnea (OSA), a condition in which breathing repeatedly pauses during sleep. Nasal obstruction is usually one factor among several in OSA rather than the sole cause.
Facial Pressure and Headaches
When a severely deviated septum presses against the side wall of the nose, it can contribute to “contact-point” headaches felt around the eyes, forehead, or cheeks, and sinus pressure from impaired drainage can add to facial discomfort. Because many conditions cause facial pain, this symptom is best evaluated in context by a clinician rather than assumed to be septal.
How a Deviated Septum Is Diagnosed
An ENT (ear, nose, and throat) specialist, also called an otolaryngologist, diagnoses a deviated septum through a combination of methods. The evaluation usually starts with a review of your symptoms and medical history, followed by a physical exam using a nasal speculum and a light to look inside the nostrils.
Nasal endoscopy, in which a thin, flexible camera is passed into the nose, provides a more detailed view of the septum, nasal passages, and sinus openings. In some cases a CT scan of the sinuses may be ordered to assess the degree of deviation, evaluate the sinuses, and plan surgery if it is being considered. For an experienced ENT, the diagnosis is usually straightforward.
When You May Not Need Surgery
Many deviated septums can be managed without surgery. If your symptoms are mild or intermittent, conservative treatments may provide adequate relief. These commonly include:
- Nasal corticosteroid sprays (such as fluticasone or mometasone) to reduce inflammation and improve airflow.
- Saline nasal irrigation or sprays to keep the nasal passages moist and support drainage.
- Allergy treatment, such as antihistamines, if allergies are adding to your congestion.
- Nasal decongestant sprays for short-term use only during acute congestion — generally no more than about three days, to avoid rebound congestion.
- Nasal strips or internal dilators to mechanically open a narrowed passage, particularly at night.
Conservative management is a reasonable first step, and many people find their symptoms become tolerable with consistent use. It is worth being clear about what these treatments do: they ease symptoms and address contributing factors like allergy and dryness, but they do not straighten the septum itself.
When Surgery Becomes Worth Considering
Surgery is generally considered when symptoms persist despite conservative treatment and meaningfully affect your quality of life or sleep. Situations where an ENT may raise the option include:
- Chronic nasal obstruction that does not respond to medication.
- Recurrent sinus infections linked to poor drainage.
- Significant snoring or sleep-disordered breathing in which nasal obstruction is a real component.
- Recurrent nosebleeds from the deviated side.
- Persistent facial pain attributed to septal contact points, once other causes are ruled out.
Whether to have surgery is a shared decision between you and your ENT, weighing how much the symptoms affect you against the risks and recovery involved.
What Is Septoplasty?
Septoplasty is the surgical procedure to straighten a deviated septum. It is one of the more commonly performed ENT surgeries in the United States. It is typically done under general or local anesthesia and often takes on the order of 30 to 90 minutes. The surgeon works through an incision inside the nose (no external cuts) to straighten the septum by removing or repositioning deviated cartilage and bone.
Recovery usually involves a week or two of congestion, swelling, and mild discomfort. Many patients return to desk work within about a week and resume full physical activity within a few weeks, on their surgeon’s guidance. Improvements in nasal breathing are often noticeable as swelling resolves over the following weeks, with fuller results developing over several months.
For a breakdown of what septoplasty costs with and without insurance, see our article on deviated septum surgery cost.
Risks of Septoplasty
Like any surgery, septoplasty carries some risks. These can include bleeding, infection, a change in the shape of the nose, a septal perforation (a hole in the septum), changes in the sense of smell, and the possibility that symptoms do not fully resolve. According to the Cleveland Clinic, the overall complication rate is low and most patients report improved breathing, though results vary and some people need additional treatment.
Living With a Deviated Septum: Practical Tips
Whether or not you pursue surgery, several habits can reduce the day-to-day impact of a deviated septum. Use a humidifier in the bedroom to keep nasal passages moist, especially in winter. Rinse regularly with saline using a neti pot or squeeze bottle (with distilled, sterile, or previously boiled and cooled water) to ease congestion and support drainage. Sleep with your head slightly elevated to help drainage, stay well hydrated to keep mucus thin, and avoid nasal irritants such as cigarette smoke, strong fumes, and excess alcohol, which can worsen swelling.
Frequently Asked Questions
Can a deviated septum fix itself?
No. A deviated septum does not straighten on its own, because the cartilage and bone hold their shape once developed. Symptoms can still fluctuate over time with aging, allergies, or changes in nasal tissue. Surgical correction is the only way to physically straighten the septum, though not everyone with a deviation needs it.
How do I know if my congestion is from a deviated septum or allergies?
Allergic congestion typically affects both nostrils fairly equally and comes with itching, sneezing, and watery eyes, and it usually responds to allergy treatment. Deviated-septum congestion tends to be worse on one specific side, is more constant, and does not fully respond to allergy medications. Many people have both at once, which compounds symptoms. An ENT evaluation can distinguish between them.
Is septoplasty covered by insurance?
Septoplasty performed to correct a symptomatic deviated septum is generally considered medically necessary and is covered by most health plans, including Medicare, though rules vary. You will typically need documentation of failed conservative treatment and an ENT diagnosis, and prior authorization may be required. If cosmetic rhinoplasty is combined with septoplasty, the cosmetic portion is usually not covered. Confirm details with your own insurer.
Can a deviated septum cause sleep apnea?
A deviated septum can contribute to or worsen obstructive sleep apnea by restricting nasal airflow, but it is rarely the sole cause. Sleep apnea involves upper-airway collapse influenced by anatomy, weight, and muscle tone. Correcting the septum may improve symptoms and comfort, but many people with OSA still need treatment such as CPAP; a sleep evaluation is the way to know.
What is the difference between a deviated septum and turbinate hypertrophy?
The septum is the dividing wall of the nose, while the turbinates are structures on the outer walls of each nasal passage that warm and humidify air. Turbinate hypertrophy (enlargement) can cause obstruction symptoms very similar to a deviated septum, and the two often occur together. An ENT can identify which structures are contributing and, if surgery is needed, may address both at once.
The Bottom Line
If symptoms of a deviated septum are affecting your breathing, sleep, or quality of life, start by seeing an ENT specialist for a proper evaluation. A deviated septum is common, and many people have a mild one that never needs treatment. Conservative measures — saline rinses, steroid or allergy sprays, and short-term decongestants — help many people and are generally tried first, though they manage symptoms rather than straighten the septum. Septoplasty is a well-established, generally low-risk option when significant symptoms persist despite conservative care. The key is not to accept chronic nasal obstruction as something you simply have to live with when effective options exist.
See a doctor promptly if you have persistent trouble breathing through your nose, recurrent or heavy nosebleeds, or nasal obstruction that disrupts your sleep, so the cause can be evaluated.
This article is for general information only and is not medical advice. Symptoms overlap between conditions, so consult a licensed clinician or ENT specialist for diagnosis and treatment decisions.
Sources
- Mayo Clinic — deviated septum symptoms and causes
- Cleveland Clinic — deviated septum and septoplasty
- American Academy of Otolaryngology–Head and Neck Surgery (AAO-HNS) — deviated septum
- CDC — sinusitis data
- MedlinePlus (NIH) — nasal and sinus conditions