What factors may contribute to asthma?

Updated: Jan 07, 2019
  • Author: Michael J Morris, MD, FACP, FCCP; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Answer

Factors that can contribute to asthma or airway hyperreactivity may include any of the following:

  • Environmental allergens (eg, house dust mites; animal allergens, especially cat and dog; cockroach allergens; and fungi)

  • Viral respiratory tract infections

  • Exercise, hyperventilation

  • Gastroesophageal reflux disease

  • Chronic sinusitis or rhinitis

  • Aspirin or nonsteroidal anti-inflammatory drug (NSAID) hypersensitivity, sulfite sensitivity

  • Use of beta-adrenergic receptor blockers (including ophthalmic preparations)

  • Obesity [10]

  • Environmental pollutants, tobacco smoke

  • Occupational exposure

  • Irritants (eg, household sprays, paint fumes)

  • Various high- and low-molecular-weight compounds (eg, insects, plants, latex, gums, diisocyanates, anhydrides, wood dust, and fluxes; associated with occupational asthma)

  • Emotional factors or stress

  • Perinatal factors (prematurity and increased maternal age; maternal smoking and prenatal exposure to tobacco smoke; breastfeeding has not been definitely shown to be protective)


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