FESS is a surgical procedure that uses an endoscope (a thin, lighted instrument) to visualize and access the nasal passages and sinuses. The surgeon removes obstructing tissue, bone, or polyps and opens blocked sinus passages to improve drainage and airflow. It is typically performed to treat chronic sinusitis, nasal polyps, or other conditions that have not improved with medical management.

Candidates are typically people with chronic sinus disease or nasal obstruction that has not responded adequately to medications, nasal sprays, or other conservative treatments. A qualified ENT surgeon will evaluate your specific condition, imaging studies, and medical history to determine whether FESS is appropriate for you.

The procedure is performed under general anesthesia in an operating room. The surgeon inserts an endoscope through the nostrils to visualize the sinuses directly, then uses specialized instruments to remove tissue or enlarge the sinus openings. Most procedures last between 30 minutes to two hours depending on complexity.

Initial recovery involves nasal congestion, drainage, and crusting for the first 1 to 2 weeks. Most people can return to light activities within a week, though full recovery typically takes 2 to 4 weeks. Your surgeon will provide specific instructions about when to resume normal activities and exercise.

Symptom improvement may be gradual over the first few weeks as swelling decreases and healing progresses. Many people experience reduced facial pain, improved breathing, and fewer sinus infections. Results are generally durable, though recurrent disease can occur in some cases and may require retreatment.