Bilateral Nasal Polyposis is a sinusitis
related disorder. Hyperthopied oedematous polypoidal nasal mucosa are called poyps. They may be AC Polyp or Ethemoidal poyps. This might be the case of a Ehemoidal polyps.Commonly Ethemoidal polyps are multiple and bilateral. Most common cause is allergy
of sinonasal tract.It blocks the osteomeatal unit
and nasal tract and may cause headache and nasal blockage.