Asthma is the primary cause of wheezing. Other causes include allergies, heart failure, pneumonia and respiratory tract infections. These factors narrow the airways, causing breathing problems, according to Mayo Clinic.Continue Reading
Doctors determine the causes of wheezing by examining the triggers and symptoms of their patients. For example, if a patient has no lung disease but experiences symptoms of wheezing after eating some foods, this is an indication that the patient might be having a food or respiratory allergy, says WebMD.
Wheezing can develop in anyone, but it is common to smokers and people with allergies, cancer and asthma. Individuals with this condition should avoid smoking and triggers such as pollen, stresses Healthline.Learn more about Cold & Flu