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Functional Endoscopic Sinus Surgery FESS

  • Post category:ENT / Healthcare
  • Reading time:5 mins read

What is FESS?

FESS is a surgical technique that uses a thin, rigid tube with a camera on the end, called an endoscope to visualize and treat sinus passages. The endoscope in conjunction with specialized instruments, are to remove blockages and restore normal sinus drainage.

Sinuses are air-filled cavities within the skull that connect to the nasal passages. They play a crucial role in our respiratory system and overall health.

Sinuses are located in the facial bones, including:

  • Maxillary sinuses (behind the cheekbones)
  • Frontal sinuses (in the forehead)
  • Ethmoid sinuses (between the nasal cavity and the orbit)
  • Sphenoid sinuses (behind the nasal cavity)


  • Produce mucus to humidify and filter the air we breathe
  • Regulate air pressure and temperature
  • Help to resonate sound during speech
  • Contain immune cells called macrophages to fight off infections


  • Sinuses help to lighten the skull and reduce facial weight
  • They also provide a buffer against external trauma, such as a blow to the face

Healthy sinuses are essential for our overall well-being, and any issues with the sinuses, such as sinusitis or allergies, can significantly impact our quality of life.

Conditions treated by FESS:

  • Chronic sinusitis (inflammation or infection of the sinuses)
  • Nasal polyps
  • Nasal obstruction due to Deviated nasal septum, Enlarged turbinate bones, Sinus and nasal tumors etc. 4. Recurring sinus infections

Goals of FESS:

  • Reduce number and severity of infections
  • Improve sinusitis symptoms
  • Improve airflow through the nose
  • Improve drainage of sinuses
  • Improve sense of smell.

Benefits of FESS:

  • Minimally invasive, resulting in less tissue damage and scarring
  • Shorter hospital stays and faster recovery times
  • Reduced bleeding and post-operative pain
  • Improved sinus function and breathing
  • Reduced risk of complications compared to traditional sinus surgery

The procedure:

  • General anesthesia or local anesthesia with sedation is administered.
  • The endoscope is inserted through the nostrils to visualize the sinus passages.
  • Specialized instruments are used to remove blockages and restore normal sinus drainage.
  • The procedure typically takes 2-3 hours to complete.

Post-operative care:

  • Nasal packing or splints are used to support the nasal passages and prevent nasal bleeding for 1st 24 hours
  • Pain medication and antibiotics are be prescribed.
  • Follow-up appointments are necessary to douche the nose, monitor healing etc.

If you’re experiencing sinus-related issues, consult our Ear, Nose, and Throat (ENT) specialist via the button below

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