The nasal septum is a piece of cartilage and bone that runs down the center of the nose and separates the right nasal passage from the left nasal passage. Along the central ridge of the nose, from the bridge to the tip, you’ll feel the bony foundation of the nasal septum until you get to the halfway point. After that, the central ridge is made of cartilage. It is also rigid, but you can push it from side to side. The septum should be straight and vertical, pointing straight down to the chin from the bridge of the nose. Septal deviation occurs when the bony part of the septum, the cartilage part of the septum, or both, aren’t straight or don't align vertically with the face. If there's enough deviation, the nose will look crooked, bent, or off-center. Aside from cosmetic issues, a markedly deviated septum can cause breathing, congestion, and sinus problems. A severely deviated septum can partially or entirely block airflow through one of the nostrils. Breathing through the nose can be difficult. Secondary problems, such as low-quality sleep, sleep apnea, and dry mouth, may occur.
A deviated septum is a common health condition that can affect anyone, regardless of age, sex, race, or ethnicity.
Early signs of a deviated septum include a crooked or bent nose and problems breathing through the nose.
A deviated septum typically does not require immediate medical attention.
A deviated septum can be caused by injuries throughout childhood or it may be present from birth. People may be at risk for developing deviated septum symptoms if they engage in activities that may cause facial injuries or blows to the face, such as contact sports.
A deviated septum is usually self-diagnosable, but it will require a medical diagnosis if correction of the deviated septum is desired.
A deviated septum generally does not require treatment, but symptoms typically resolve with symptom relief medications or surgical correction.
An untreated deviated septum could result in complications, such as breathing difficulties, sleep disturbances, worsened sleep apnea, nosebleeds, sinus infections, headaches, and facial pain.
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The nose's appearance is the most evident early sign of a deviated septum, but a mild deviation may not be easily visible. The nose may look unstraight and may not align vertically with the rest of the face. A person with a deviated nasal septum may describe their nose as crooked, bent, not straight, or off-center. People with a badly deviated septum will find it difficult to breathe through one of their nostrils because of the narrowing of the nasal cavity. Breathing difficulty may increase due to allergies or nasal congestion. It also may be more difficult to breathe while sleeping, leading to decreased sleep quality.
Symptoms directly caused by a deviated septum include:
Irregular shape or direction of the nose
Partial or total block of one nasal passage
Difficulty breathing
Drying of the nasal septum
Crusting and bleeding of the nasal septum
Poor sinus drainage
Deviated septum symptoms can also lead to complications, such as:
Sleep disturbances due to breathing difficulties
Worsened sleep apnea symptoms
Snoring due to breathing difficulties
Sinus infections and chronic sinusitis due to poor sinus drainage
Dry mouth due to increased mouth breathing
Nosebleeds, headaches, or facial pain due to spur formation
A perforated septum is a hole through the septum. It is usually caused by blood vessel damage and the subsequent death of the cartilage. Injuries, infections, cancer, cocaine use, nasal steroids, autoimmune diseases, or excessive nose-picking are the most common causes of the damage. Like a deviated septum, a small perforation in the septum doesn’t require treatment, but a more serious hole might. Outside of nasal blockage or problems breathing through the nose, the symptoms of a deviated septum and a perforated septum are very different. Most importantly, while septal deviation can change the shape of the nose, only the most severe septal perforations affect the nose’s appearance.
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Healthcare providers classify deviated septum based on the nature of the deviation. In the most basic classification system, the three main types of septal deviation are:
Caudal septal deviations: involve the nose being straight, but not vertically oriented to the face
Concave dorsal deformities: cause the nose to have a C-shaped or reverse C-shaped deviation
Concave/convex dorsal deformities: cause the nose to have an S-shaped deviation
Plastic surgeons typically use a more complex classification system, organizing deviated septum into five different types. They are similar to the three types above, but they are partly based on whether deviations are in the bony part of the septum, the cartilage part, or both. These nuances are harder for non-specialists to see, but they are vital to plastic surgeons in restoring a more natural appearance to the nose.
Seeing a healthcare provider for a deviated nasal septum is usually a personal decision based on personal appearance or symptom intolerance. Most people don’t seek treatment. By some estimates, septal deviation can be found in over 80% of the population. Most don’t know it. The most common symptoms are minor or nonexistent, and the appearance of the nose is not affected.
If symptoms are bad, including breathing problems, headaches, pain, or repeated and frequent sinus infections, see a healthcare provider. These symptoms will probably require surgery to correct them.
Because septal deviations are widespread, an initial diagnosis aims to determine the severity of the deviation. An initial evaluation will consist of a medical history and physical exam by a healthcare provider. Since a deviated septum is an anatomical irregularity in the nose, healthcare professionals typically diagnose the condition by examining both the outside and inside of the nose. They will examine the inside of the nose with an otoscope, a nasal endoscope, or a fiber optic tube attached to a monitor or camera. When examining the nasal passages, the clinician may use a nasal speculum that widens the nasal opening. A medical history will help determine the symptoms and any possible causes, such as a past injury.
If the deviation is severe, the symptoms are bad, or the patient desires surgical correction, the healthcare provider will refer the person to a plastic surgeon, an ear, nose, and throat (ENT) specialist, or an otolaryngologist. Before surgery, the goal of the diagnosis is to determine the exact nature of the deviation. These specialists typically use fiber-optic endoscopy and CT scans to get the most accurate picture of the deviation and any possible damage to the face, bones, and cartilage.
RELATED: Sinus infection symptoms: what are the early signs of sinus infection?
Possible complications of an uncorrected deviated septum include:
Difficulty breathing
Worsening of obstructive sleep apnea
Sleep disruptions
Dry mouth (from breathing through the mouth)
Poor sinus drainage
Recurring sinus infections
Sinus and nasal congestion
Bony spurs are a possible complication of a deviated septum and can cause their own set of complications, including:
Nosebleeds
Headaches
Facial pain
Additionally, one study found an increased rate of psychiatric problems in people with symptomatic septal deviation, including depression, anxiety, and migraines .
The standard treatment for a deviated septum is surgical correction. However, the symptoms of a deviated septum, such as congestion, can be treated with over-the-counter and prescription medications.
Symptom relief treatment typically consists of oral antihistamines, nasal spray antihistamines, decongestants, corticosteroid nasal sprays, or allergen immunotherapy injections (“allergy shots”). These drugs can help reduce swelling in the nasal passages to allow for easier breathing. They do not correct the septal deviation.
An ENT specialist or plastic surgeon can surgically correct the deviated septum using a procedure called septoplasty. It is one of the most common surgical procedures among ENT specialists and plastic surgeons. The surgery can be done through the nostrils, either with an endoscope or by cutting open the nose at the base. It can be done in the doctor’s office, an outpatient surgery center, or a hospital. People are usually sent home on the day of the surgery.
During a septoplasty, a plastic surgeon may also perform a rhinoplasty, a type of plastic surgery or reconstructive surgery that reshapes the nose. It is a much more complex and expensive operation. A rhinoplasty is mostly a cosmetic procedure, but it may improve nasal symptoms.
RELATED: The best medicine for congestion
If one chooses to not have surgery on a deviated septum, there are ways to manage the symptoms and keep the nasal passages clear:
Use a warm saline rinse or Neti pot to help clear mucus and decongest the nose
Find the best sleep position at night to keep the nasal passages open—this may be on the back with the head elevated or sleeping on the opposite side of the blocked nostril
Use a humidifier to clear nasal passages, mainly when sleeping
Use an air purifier to remove allergens and irritants from the air being breathed
Use over-the-counter medications, such as decongestants, antihistamines, and nasal steroid sprays, to keep nasal passages open
RELATED: How to get rid of a stuffy nose
Most people live with a deviated septum without realizing there’s a problem. However, if breathing is difficult, sleep is fitful, or sinus infections are a recurrent problem, talk to a healthcare provider. While surgery is frightening, it is a minor, low-risk, and short procedure. People often go home the same day and recover in a few days to a week. Fixing a severely deviated nasal septum may substantially improve quality of life. Among patients, the satisfaction rate is very high.
Many choose to not correct a deviated septum when there are no complications or problems. Mild deviations usually don’t cause problems, and many people are happy with the appearance of their noses. Severe deviations can cause issues, but none of them are necessarily health-threatening.
A septal deviation can only be corrected with surgery.
The best position for sleeping with a deviated septum is on the back with the head elevated. This will promote drainage of the nostrils and sinuses. If this doesn’t work, try sleeping on the side opposite of the blocked nostril. Not every solution will work for everyone, so finding the best solution may take a while.
Deviated septum, NYU Langone Health
Nasal endoscopy, Mount Sinai
Deviated septum, NYU Langone Health
Deviated septum: diagnosis and treatment, Mayo Clinic
Septoplasty, Cleveland Clinic
Septoplasty, StatPearls
Sinus infection treatments and medications, SingleCare
Sleep apnea treatments and medications, SingleCare
Josephine Bawab, Pharm.D., graduated from Virginia Commonwealth University School of Pharmacy. She began working in community pharmacy in 2012 and has worked for multiple chain pharmacies since then. She is passionate about helping patients and precepting students. She currently works and resides in Virginia, where she is just a few minutes away from the beach.
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