Deviated Nasal Septum (DNS): Do You Really Need Surgery?
Nearly 80% of people have some degree of deviation in their nasal septum — the cartilage and bone partition dividing the nose into two sides. Yet the vast majority never notice it and never need treatment. So when does a deviated nasal septum (DNS) actually matter, and when is surgery the right answer?
What Is the Nasal Septum and Why Does It Deviate?
The nasal septum runs from the base of the nose to the back of the nasal cavity, dividing it into left and right passages. It is composed of cartilage in the front and thin bone posteriorly. Deviation occurs due to birth trauma, childhood nasal injuries, contact sports, falls, or asymmetric growth during adolescence. In most cases, the deviation develops gradually and goes entirely unnoticed.
When DNS Becomes a Problem
A DNS becomes clinically significant when it causes one or more of the following:
- Chronic nasal obstruction — persistent blockage on one or both sides that does not improve with medical treatment
- Recurrent sinusitis — the deviation narrows the sinus drainage pathways, trapping mucus and promoting infection
- Sleep-related breathing problems — nasal obstruction forces mouth breathing, worsens snoring and reduces CPAP tolerance in sleep apnea patients
- Recurrent nosebleeds — turbulent airflow over a deviated septum dries and erodes the mucosal surface
- Headaches — contact between the deviated septum and the lateral nasal wall (contact-point headache) causes referred facial pain
- Anosmia — obstruction of the olfactory cleft reduces sense of smell
Medical Treatment First — Always
Before surgery is considered, medical treatment must be optimised. Intranasal corticosteroid sprays reduce mucosal swelling and can significantly improve airflow even through a deviated septum. Treating underlying allergic rhinitis often restores adequate nasal breathing without any surgical intervention. A trial of at least 6–8 weeks of appropriate medical treatment is standard practice before surgery is recommended.
What Is Septoplasty?
Septoplasty is the surgical correction of a deviated septum. It is performed entirely through the nostrils — no external cuts, no bruising, no change to the external appearance of the nose. Under general anaesthesia, the deviated cartilage and bone are repositioned or selectively removed to straighten the septum and restore airflow.
It is typically combined with turbinate reduction (submucous resection of the inferior turbinates) if turbinate hypertrophy is also contributing to obstruction — which is extremely common. The combined procedure is called septoturbinoplasty.
What to Expect After Surgery
- Surgery takes 45–90 minutes under general anaesthesia
- Most patients go home the same day or after one night
- Nasal packing (if used) is removed within 24–48 hours
- Swelling and congestion typically last 2–4 weeks
- Full improvement in breathing is felt within 4–6 weeks
- There is no external bruising or change in nasal appearance
- Return to desk work: 5–7 days. Physical activity: 3–4 weeks
Septoplasty vs Rhinoplasty — Understanding the Difference
Septoplasty corrects internal deviation to improve breathing — it does not change the external shape of the nose. Rhinoplasty reshapes the external nose for cosmetic reasons. Septorhinoplasty combines both. If you have both a functional problem (obstruction) and a cosmetic concern (nose shape), both can be addressed in a single procedure.
Who Should NOT Have Surgery Immediately
- Children under 16–18 years — the septum is still growing; surgery should be deferred unless the obstruction is severe
- Patients whose symptoms are fully controlled with medical treatment
- Patients with untreated allergic rhinitis — allergy must be addressed first
- Patients with unrealistic expectations about surgical outcomes
Dr Pranshu Mehta is an ENT Surgeon at Rog Nidan ENT & Dental Clinic, C-2/275 Janakpuri, New Delhi. For DNS evaluation and septoplasty consultation: WhatsApp +91 98186 35660. Watch: @TheENTSurgeons on YouTube.