Sinusitis risk factors

Overview
Factors which may predispose to developing sinusitis include: allergies; structural problems such as, for example, a deviated septum, small sinus ostia; smoking; nasal polyps; carrying the cystic fibrosis gene (research is still tentative); prior bouts of sinusitis as each instance may result in increased inflammation of the nasal or sinus mucosa and potentially further narrow the openings.

Risk Factors
The following may increase your risk or your child's risk of developing sinusitis:
 * Allergic rhinitis or hay fever
 * Cystic fibrosis
 * Day care
 * Diseases that prevent the cilia from working properly, such as Kartagener syndrome and immotile cilia syndrome.
 * Changes in altitude (flying or scuba diving)
 * Large adenoids
 * Tooth infections (rare)
 * Weakened immune system from HIV or chemotherapy