Introduction: Sinusitis


Sinusitis: Sinusitis is any infection or inflammation of the sinus cavities behind the nose and eyes. It is very common with an estimated 37 million cases annually in the USA. Symptoms vary according to which sinus cavity is infected; some are similar to cold or flu but other infections are not. Some sinus infections may also occur as a complication of a cold or flu. There may be various other underlying conditions causing sinusitis such as allergies, hay fever, or asthma.

Sinusitis: Sinusitis simply means your sinuses are infected or inflamed, but this gives little indication of the misery and pain this condition can cause. Health care experts usually divide sinusitis cases into

  • Acute, which lasts for 3 weeks or less
  • Chronic, which usually lasts for 3 to 8 weeks but can continue for months or even years
  • Recurrent, which is several acute attacks within a year
Health care experts estimate that 37 million Americans are affected by sinusitis every year.1

Researching symptoms of Sinusitis: Further information about the symptoms of Sinusitis is available including a list of symptoms of Sinusitis, other diseases that might have similar symptoms in differential diagnosis of Sinusitis, or alternatively return to research other symptoms in the symptom center.

Misdiagnosis and Sinusitis: Research more detailed information about misdiagnosis of Sinusitis, underlying causes of Sinusitis (possibly misdiagnosed), or research misdiagnosis of other diseases

Treatments for Sinusitis: Various information is available about treatments available for Sinusitis, prevention of Sinusitis, or research treatments for other diseases.

Causes of Sinusitis: Research more detailed information about the causes of Sinusitis, other possibly hidden causes of Sinusitis, or other general information about Sinusitis.

Statistics and Sinusitis: Various sources and calculations are available in statistics about Sinusitis, prevalence and incidence statistics for Sinusitis, and you can also research other medical statistics in our statistics center.

         Contents for Sinusitis:

1. excerpt from Sinusitis, NIAID Fact Sheet: NIAID

Last revision: June 16, 2003

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