The symptoms of a deviated septum are more widespread than most people realize. An estimated 80 percent 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 determine whether further evaluation is worthwhile.
This guide covers what a deviated septum is, the symptoms it causes, how doctors diagnose the condition, when surgery becomes necessary, and what to expect from treatment. For more information about health conditions and their impact, visit our medical conditions guide.
What Is a Deviated Septum?
The nasal septum is the wall of cartilage and bone that divides your nose into two nostrils. Ideally, this wall runs straight down the center, creating two equal air passages. A deviated septum occurs when this wall is significantly displaced to one side, making one nasal passage smaller than the other.
Deviated septums can be present from birth due to how the nose developed in the womb, or they can result from injury. Trauma to the nose during contact sports, car accidents, or falls is a common cause. Some deviations worsen gradually with age as nasal structures change over time. The degree of deviation varies enormously. A mild deviation may be entirely asymptomatic, while a severe deviation can block airflow almost completely on one side.
Primary Symptoms of a Deviated Septum
Not everyone with a deviated septum has symptoms, 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. This obstruction may be constant or may alternate between sides. It often worsens during colds or allergy flare-ups when the nasal tissues swell further, compounding the structural blockage. Some people find that they can only breathe comfortably through one nostril.
Difficulty Breathing Through the Nose
People with a significant deviated septum often resort to mouth breathing, particularly during exercise or sleep. This is more than an inconvenience. Chronic mouth breathing can lead to a dry mouth, increased risk of dental problems, sore throat, and reduced quality of sleep. The nasal passages humidify, warm, and filter incoming air, so bypassing them through mouth breathing reduces these protective functions.
Recurrent Sinus Infections
A deviated septum can impede proper sinus drainage, creating an environment where bacteria thrive. People with significant deviations may experience three or more sinus infections per year, or chronic sinusitis that persists for 12 weeks or longer. The CDC reports that sinusitis affects approximately 28.9 million adults in the United States annually, and structural nasal abnormalities are a recognized contributing factor.
Nosebleeds
The narrow side of a deviated septum may have drier, more exposed mucosal surfaces that are prone to cracking and bleeding. Frequent or recurrent nosebleeds, particularly from the same nostril, can be a sign of septal deviation. The altered airflow patterns dry out the nasal lining unevenly, increasing vulnerability to epistaxis (the medical term for nosebleeds).
Snoring and Sleep Disruption
Nasal obstruction from a deviated septum is a common contributor to snoring. The narrowed airway creates turbulent airflow, producing the vibrations that cause snoring sounds. In some cases, a deviated septum can contribute to or worsen obstructive sleep apnea (OSA), a condition where breathing repeatedly stops and starts during sleep. Research published in PubMed has shown a correlation between severe septal deviation and increased sleep apnea severity.
Facial Pain and Headaches
When a severely deviated septum presses against the lateral nasal wall, it can cause contact-point headaches, which produce pain around the eyes, forehead, or cheeks. These headaches may be mistaken for migraines or tension headaches. Sinus pressure from impaired drainage also contributes to facial discomfort.
How a Deviated Septum Is Diagnosed
An ENT (ear, nose, and throat) specialist, also known as an otolaryngologist, diagnoses deviated septums through a combination of methods. The evaluation typically begins with a review of your symptoms and medical history, followed by a physical examination using a nasal speculum and a bright light to look inside the nostrils.
Nasal endoscopy, where a thin, flexible tube with a camera is inserted 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 for disease, and plan for surgery if needed. The diagnosis is usually straightforward for an experienced ENT specialist.
When You Do 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 include nasal corticosteroid sprays (such as fluticasone or mometasone) to reduce inflammation and improve airflow, saline nasal irrigation to keep nasal passages moist and promote drainage, antihistamines if allergies are contributing to your congestion, nasal decongestant sprays for short-term use during acute congestion (not to exceed three days to avoid rebound congestion), and nasal strips or internal dilators to mechanically open the narrowed passage during sleep.
Conservative management is a reasonable first step, and many people find that their symptoms become tolerable with consistent use of these treatments. However, these approaches treat the symptoms rather than the structural cause.
When Surgery Becomes Necessary
Surgery should be considered when symptoms of deviated septum persist despite conservative treatment and significantly impact your quality of life. Specific indications include chronic nasal obstruction that does not respond to medications, recurrent sinus infections (three or more per year) related to poor drainage, significant snoring or obstructive sleep apnea caused by the deviation, recurrent nosebleeds from the deviated side, and persistent facial pain attributed to septal contact points.
What Is Septoplasty?
Septoplasty is the surgical procedure to correct a deviated septum. It is one of the most commonly performed ENT surgeries in the United States, with an estimated 260,000 procedures performed annually. The surgery is typically done under general or local anesthesia and takes 30 to 90 minutes. The surgeon makes an incision inside the nose (no external cuts), then straightens the septum by removing or repositioning deviated cartilage and bone.
Recovery from septoplasty usually involves one to two weeks of congestion, swelling, and mild discomfort. Most patients can return to work within a week and resume full physical activity within three to four weeks. Nasal breathing improvements are typically noticeable within two to four weeks as swelling resolves, with full results apparent by three to six months.
For a detailed 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 include bleeding, infection, a temporary or permanent change in nose shape, septal perforation (a hole in the septum), decreased sense of smell, and the possibility that symptoms do not fully resolve. According to the Cleveland Clinic, the overall complication rate for septoplasty is low, and patient satisfaction rates are high, with studies reporting improvement in breathing in 85 to 90 percent of cases.
Living With a Deviated Septum: Practical Tips
Whether or not you pursue surgery, several habits can help minimize the impact of a deviated septum on your daily life. Use a humidifier in your bedroom to keep nasal passages moist, especially during winter months. Practice regular saline rinsing using a neti pot or squeeze bottle to reduce congestion and prevent infections. Sleep with your head slightly elevated to promote nasal drainage. Stay hydrated, as adequate fluid intake helps keep nasal mucus thin and flowing. Avoid known nasal irritants, including cigarette smoke, strong chemical fumes, and excessive alcohol (which can cause nasal swelling).
Frequently Asked Questions
Can a deviated septum fix itself?
No, a deviated septum does not straighten on its own. The cartilage and bone that make up the septum maintain their shape once fully developed. However, symptoms can fluctuate over time, sometimes improving or worsening with aging, weight changes, or changes in nasal tissue. Surgical correction is the only way to physically straighten the septum.
How do I know if my congestion is from a deviated septum or allergies?
Allergic congestion typically affects both nostrils equally, comes with itching, sneezing, and watery eyes, and responds well to antihistamines. 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 conditions simultaneously, which compounds their symptoms. An ENT evaluation can distinguish between the two.
Is septoplasty covered by insurance?
Septoplasty performed to correct a symptomatic deviated septum is generally considered medically necessary and is covered by most health insurance plans, including Medicare. You will typically need documentation of failed conservative treatment and an ENT diagnosis. Cosmetic rhinoplasty (nose reshaping) combined with septoplasty may not be fully covered, with the cosmetic portion being out of pocket.
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 during sleep, which is influenced by multiple factors including anatomy, weight, and muscle tone. Correcting a deviated septum may improve sleep apnea severity, particularly in cases where nasal obstruction is a significant component, but additional treatment such as CPAP therapy may still be needed.
What is the difference between a deviated septum and turbinate hypertrophy?
The septum is the dividing wall of the nose, while turbinates are bony structures on the outer walls of each nasal passage that warm and humidify air. Turbinate hypertrophy (enlargement) can cause nasal obstruction symptoms very similar to a deviated septum. Both conditions are frequently present together and may be addressed in the same surgical procedure. Your ENT can identify which structures are contributing to your symptoms.
Making an Informed Decision
If symptoms of a deviated septum are affecting your breathing, sleep, or overall quality of life, start by seeing an ENT specialist for a proper evaluation. Conservative treatments are effective for many people and should be tried first. If those approaches are not enough, septoplasty is a well-established, low-risk procedure with high success rates. The key is not to accept chronic nasal obstruction as something you simply have to live with, especially when effective solutions are available. For related conditions worth knowing about, explore our medical conditions guide.