What Does Endoscopic Sinus Surgery Involve?

Endoscopic sinus surgery isn’t the open, invasive operation many people imagine—it doesn’t involve external incisions or visible scarring.
Instead, this approach uses a thin, flexible tube called an endoscope that’s inserted through the nostrils, allowing your surgeon to see inside the sinuses with a camera and small instruments.
It’s considered a minimally invasive procedure because it doesn’t require cutting through skin or bone from the outside.
Most of the work happens through natural openings in the nasal passages, which means less trauma to surrounding tissue.
That difference shortens recovery time and lowers complication risks compared to older surgical techniques.
The goal is to restore drainage, improve airflow, and remove whatever’s blocking your sinuses from functioning properly.

The Goal Is to Restore Drainage and Airflow

Chronic sinusitis often results from blocked or inflamed sinus openings, which trap mucus and lead to recurring infections or pressure.
Endoscopic surgery focuses on clearing those blockages—whether it’s swollen tissue, nasal polyps, or lingering infection—so that your sinuses can drain like they’re supposed to.
By widening the natural openings or removing problem areas, the sinuses return to a more functional state.
Airflow improves, pressure decreases, and mucus stops pooling.
You may not notice it right away, but over time, the relief becomes obvious.
Fewer infections, clearer breathing, and better sleep are some of the outcomes people often report.

It’s Usually Done Under General Anesthesia

Most endoscopic sinus surgeries are performed in a hospital or outpatient surgical center under general anesthesia, meaning you’re fully asleep for the procedure.
In some cases, particularly less extensive ones, local anesthesia and sedation may be used, but general anesthesia remains more common.
The procedure typically lasts between one and three hours depending on the extent of sinus involvement and the presence of other nasal conditions like deviated septum or large polyps.
Your surgeon may combine sinus surgery with septoplasty or turbinate reduction for better overall breathing results.
You won’t feel anything during surgery, and you’ll wake up in recovery with some nasal packing or dressing.
The medical team monitors you closely to ensure bleeding and swelling remain controlled before sending you home.

Recovery Is Shorter Than You Might Expect

Many people assume that sinus surgery means weeks in bed, but most are surprised by how manageable the recovery is.
You’ll likely go home the same day, though someone will need to drive you.
Mild pain, pressure, or congestion are common afterward, but severe discomfort is rare.
Most patients return to work or school within a few days to a week, depending on how they feel.
Your doctor will likely schedule follow-up visits to clean out dried blood, mucus, or crusting from the nasal passages—this is part of healing, not a setback.
Regular rinsing with saline and avoiding blowing your nose are key during the early days.

It Doesn’t Eliminate Allergies or Colds

A common misconception is that sinus surgery stops all future sinus symptoms, but the procedure is designed to help your sinuses function better—it doesn’t cure allergies, prevent viruses, or replace immune function.
If your chronic sinus issues stem from allergic triggers, you may still need antihistamines or immunotherapy after surgery.
However, the improved drainage often means fewer infections and less severe congestion when allergy symptoms flare up.
Surgery creates better conditions for your body to manage inflammation, but it’s not a full shield against every future problem.
Think of it as clearing the path—not removing every stone you’ll ever encounter.
Ongoing care still matters.

It’s Often Recommended After Other Treatments Fail

Endoscopic sinus surgery isn’t the first step—it’s typically recommended after weeks or months of trying medications like nasal steroids, decongestants, antibiotics, and allergy treatments without lasting relief.
When symptoms keep returning, or imaging shows blocked sinuses that just won’t clear, surgery becomes part of the discussion.
It’s especially common for people with recurring infections, nasal polyps, fungal sinusitis, or structural issues that don’t respond to drugs.
If you’ve had multiple sinus infections per year and live in a fog of congestion or facial pressure, your ENT might suggest it.
It’s a decision made with you, not for you, based on how much your quality of life is affected.
Not every stuffy nose leads to surgery—but some just don’t heal on their own.

The Risks Are Low, but Not Zero

As with any surgery, there are risks—including bleeding, infection, and reactions to anesthesia.
There’s also a very small chance of injury to nearby structures like the eyes or brain because of how close the sinuses are to these areas, but experienced surgeons use detailed imaging and navigation tools to avoid these complications.
Most people experience nothing more than mild swelling, drainage, or a few nosebleeds in the first week.
Your doctor will give you clear aftercare instructions, and following them carefully reduces your risk of problems.
Avoiding strenuous activity and sticking to saline rinses during recovery helps protect the healing areas.
Complication rates remain very low, especially when the procedure is done by a board-certified ENT.