Nasal polyps are soft, non-cancerous growths that develop from inflamed tissue inside the nose and sinuses. When they become large or occur along with chronic sinus inflammation, they can cause persistent nasal blockage, reduced sense of smell, postnasal drainage, facial pressure, and difficulty breathing through the nose.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
Medicines such as nasal corticosteroids and saline irrigation are often used to control nasal polyps. However, when symptoms remain troublesome despite appropriate medical treatment, FESS (Functional Endoscopic Sinus Surgery) may be considered.
FESS does more than simply remove visible polyps. The procedure is designed to clear obstructing and diseased tissue, improve access to the sinuses, and create better conditions for ongoing medical treatment. Understanding how this works can help you know what to expect if surgery is recommended. For an overview of the procedure, you can also visit the Sinus Surgery (FESS) parent page.
Why Can Nasal Polyps Cause So Many Symptoms?
Nasal polyps develop because of persistent inflammation in the lining of the nose and sinuses. They may occur as a single growth or, more commonly in chronic rhinosinusitis with nasal polyps, as multiple growths affecting both sides of the nasal and sinus passages.
As polyps enlarge, they can occupy space within the nasal cavity and interfere with normal airflow and sinus drainage. This can lead to symptoms such as:
- Persistent nasal blockage or congestion
- Difficulty breathing through the nose
- Reduced or lost sense of smell
- Postnasal drainage
- Facial pressure or discomfort
- Changes in sleep and overall quality of life
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
Polyps are also part of an underlying inflammatory condition. This is important because simply removing the visible growths does not necessarily eliminate the inflammation that caused them.
When Is FESS Considered for Nasal Polyps?
Having nasal polyps does not automatically mean you need surgery. Treatment is usually based on how severe and persistent the disease is and how well it responds to medical management.
FESS may be considered when nasal polyps and associated chronic sinus disease continue to cause significant symptoms despite appropriate treatment. Your ENT specialist may consider factors such as:
- Persistent nasal obstruction or other symptoms
- Significant reduction in the sense of smell
- Polyps that remain troublesome despite medical treatment
- Evidence of chronic sinus inflammation on examination or imaging
- The effect of the condition on your daily activities and quality of life
- Whether surgery is likely to provide meaningful additional benefit
The decision is individualized. A CT scan showing polyps or sinus inflammation alone does not automatically mean that surgery is required.
How Does FESS Work for Nasal Polyps?
FESS is performed through the nostrils, so there is generally no need for an external facial incision. The surgeon uses a thin endoscope with a camera to see the nasal passages and sinus openings.
The exact procedure depends on where the disease is located and how extensive it is. In general, the surgeon works through the natural nasal and sinus pathways to remove obstructing polyps and diseased tissue and to open or widen affected sinus drainage pathways.
Step 1: The Sinuses Are Examined Endoscopically
A small endoscope is introduced through the nostril. It provides a magnified view of the nasal cavity, polyps, sinus openings, and surrounding structures.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
Preoperative imaging, particularly a CT scan when surgery is being planned, helps the surgeon understand the individual's sinus anatomy and extent of disease.
Step 2: Obstructing Polyps and Diseased Tissue Are Removed
The surgeon carefully removes polyps and other diseased or obstructing tissue that are contributing to blockage. The aim is not simply to remove everything that looks abnormal, but to treat the areas responsible for the patient's sinus disease while preserving important healthy structures wherever possible.
Step 3: Blocked Sinus Pathways Are Opened
Nasal polyps can contribute to blockage of the natural pathways through which the sinuses drain. During FESS, the surgeon may enlarge these pathways to improve ventilation and drainage of the affected sinuses.
The extent of surgery varies from person to person. It depends on the sinuses involved, the severity of disease, the patient's anatomy, and the overall treatment plan.
Step 4: The Sinuses Become More Accessible to Medical Treatment
One of the important goals of FESS is to improve access to the sinus cavities. After surgery, saline irrigation and topical corticosteroid treatment can reach the operated areas more effectively in appropriate patients.
This is particularly important because chronic rhinosinusitis with nasal polyps is an inflammatory disease. Surgery can reduce the physical burden of disease and improve access for ongoing anti-inflammatory treatment, but it does not necessarily remove the underlying tendency toward inflammation.
Why Isn't Removing the Polyps Alone Enough?
It may seem logical that removing the polyps should solve the problem. However, nasal polyps are a result of an underlying inflammatory process. If that inflammation remains active, polyps can develop again over time.
For this reason, current approaches generally view endoscopic sinus surgery as part of an overall treatment strategy rather than a standalone cure.
FESS can reduce the amount of obstructing disease and improve the anatomy of the sinus passages. Continued medical treatment can then help control the inflammation that remains.
What Happens After FESS for Nasal Polyps?
Recovery varies depending on the extent of surgery and the individual's health and disease severity. Your doctor may recommend regular saline irrigation and topical nasal corticosteroid treatment as part of postoperative care.
Follow-up examinations are also important. During these visits, the nasal passages can be assessed and postoperative healing can be monitored.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
The purpose of follow-up is not only to check healing but also to manage the underlying inflammatory disease and identify persistent or returning disease early.
Can Nasal Polyps Come Back After FESS?
Yes. Nasal polyps can recur after surgery, particularly because FESS does not eliminate the underlying inflammatory condition.
The likelihood of recurrence varies between individuals and may be influenced by factors such as the severity and type of inflammation, associated conditions, the extent of disease, previous surgery, and adherence to ongoing medical treatment.
This does not mean that FESS has failed. For many patients, surgery is intended to improve symptoms and sinus function while making long-term medical management more effective.
Does Everyone With Nasal Polyps Need FESS?
No. Some people with nasal polyps respond well to medical treatment and may not need surgery. Nasal corticosteroids and saline irrigation are important components of treatment for chronic rhinosinusitis with nasal polyps.
In selected patients with more severe or uncontrolled disease, other treatments may also be considered. FESS becomes an option when the expected benefit of surgery is considered greater than continuing medical treatment alone, taking the patient's symptoms, objective findings, disease severity, and treatment history into account.
What Are the Main Goals of FESS for Nasal Polyps?
The goals of surgery are broader than simply making the nose feel less blocked. Depending on the individual case, FESS aims to:
- Remove obstructing nasal polyps and diseased tissue
- Improve airflow through the nasal passages
- Improve drainage and ventilation of affected sinuses
- Reduce the physical burden of sinus disease
- Improve access for saline irrigation and topical medication
- Improve symptoms and quality of life
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
The Bottom Line
FESS for nasal polyps is not simply an operation to remove visible growths. It is designed to clear obstructing and diseased tissue, improve the natural pathways of the sinuses, and make ongoing medical treatment more effective.
Because nasal polyps are associated with chronic inflammation, surgery is usually only one part of long-term management. Some patients may achieve good control with medical treatment alone, while others with persistent or severe disease may benefit from FESS.
The most appropriate approach depends on the extent of your nasal polyps, associated sinus disease, symptoms, previous treatment, and overall treatment goals.
