Who is a good candidate for FESS, and what are the contraindications?

Good candidates include patients with chronic sinusitis that has not responded to medical therapy (e.g., antibiotics, nasal steroids) for at least 12 weeks, those with recurrent acute sinusitis, or individuals with nasal polyps, fungal sinusitis, or sinus mucoceles. Contraindications include severe uncontrolled bleeding disorders, certain anatomical variations that make endoscopic access impossible, and active severe infections outside the sinuses. A thorough preoperative evaluation, including CT imaging and nasal endoscopy, is essential to confirm suitability.