Wheezing is often a sign of allergies, bronchitis or asthma, as noted by Mayo Clinic. Wheezing can also be a sign of an obstruction in the airways, such as a tumor or a foreign object that has been inhaled.
Wheezing may be a sign of an allergic reaction to bee stings, pet dander or pollen. Wheezing in these instances indicates that a person's body is reacting to a substance that does not normally cause breathing problems. An allergic reaction to certain medications can also induce noticeable wheezing, as stated by Mayo Clinic.
Wheezing can also be an indication that a person suffers from bronchitis. Wheezing caused by bronchitis is often accompanied by shortness of breath, a persistent cough and soreness of the chest. If wheezing and other bronchitis symptoms are accompanied by a high fever, a person should consult with a doctor, according to WebMD.
Wheezing during an asthma attack is caused by an inflammation of the bronchial tubes accompanied by increased secretions in the tubes. Temporary wheezing and other asthma-related symptoms that go away within a short period of time are indicative of a mild asthma attack. Prolonged asthma attacks require immediate emergency medical assistance, as stated by WebMD.