Deviated Nasal Septum (DNS): Symptoms, Causes, Diagnosis, and Treatment

What is a Deviated Nasal Septum (DNS)?

A deviated nasal septum means the thin wall inside your nose is off-center. This wall, called the septum, divides your nose into two sides. When it is not straight, one side of your nose may be smaller. As a result, you may have trouble breathing through your nose. Many people have a slightly crooked septum, but a severe deviation can cause problems. The term “deviated nasal septum” is common in ENT clinics. According to the World Health Organization, nasal obstruction is a frequent complaint in people with DNS.

Common Symptoms of DNS

Many people with a deviated nasal septum do not notice symptoms. However, some may experience:

Blocked nose, often worse on one side

Frequent nosebleeds

Snoring or noisy breathing during sleep

Facial pain or pressure

Headaches

Postnasal drip (mucus running down the throat)

Frequent sinus infections

Sometimes, symptoms get worse during a cold or allergy flare-up. For example, you may notice more nasal obstruction when you have a stuffy nose.

Causes and Risk Factors

There are several causes of a deviated nasal septum. Most often, people are born with it. However, it can also happen after an injury to the nose. For instance, sports injuries or car accidents may cause the septum to shift. In some cases, the septum bends as you grow older. Risk factors include:

Family history of DNS

Injuries to the nose, especially in childhood

Birth trauma (injury during delivery)

Although anyone can have DNS, people with frequent nasal injuries are at higher risk.

How DNS is Diagnosed

Doctors diagnose a deviated nasal septum by asking about your symptoms and examining your nose. Usually, an ENT specialist uses a small light and a nasal speculum to look inside your nose. Sometimes, they may use a thin camera called an endoscope for a better view. In rare cases, a CT scan may be needed. This helps rule out other causes of nasal obstruction. According to the CDC, a careful exam is the best way to confirm DNS.

Treatment Options for Deviated Nasal Septum

Treatment depends on how severe your symptoms are. For mild cases, simple care may help. However, if symptoms are severe, surgery may be needed. Here are common options:

Medical Treatments

Nasal sprays to reduce swelling

Decongestants for short-term relief

Antihistamines if allergies are present

These treatments do not fix the septum, but they can ease symptoms.

Surgical Treatment (Septoplasty)

Septoplasty is a surgery to straighten the septum

It is done under local or general anesthesia

Most people go home the same day

Recovery usually takes a few weeks

Surgery is safe and effective for most people. However, as with any surgery, there are risks. Your doctor will discuss these with you.

Lifestyle Tips and Home Care for DNS

Even if you have a deviated nasal septum, you can manage symptoms at home. For example, you can:

Use a humidifier to keep air moist

Rinse your nose with saline sprays

Avoid irritants like smoke and strong odors

Sleep with your head raised to ease breathing

Additionally, staying hydrated helps thin mucus. If you have allergies, try to avoid triggers.

Prevention and When to See a Doctor

While you cannot always prevent a deviated nasal septum, you can reduce your risk of injury. For instance, wear seat belts and use protective gear during sports. If you notice ongoing nasal obstruction, frequent nosebleeds, or sinus infections, see a doctor. Early treatment can prevent complications. In summary, do not ignore symptoms that affect your daily life.

For personalized advice on deviated nasal septum, consult an ENT specialist. They can help you find the best treatment for your needs.