What are the different types of Asthma?

There are many different types of Asthma that can be broken into several different categories, usually based on the cause of asthma, the time it started, and the different levels of severity. For example:

• Cause: Allergy or Occupational/Environmental
• When Asthma begins: Childhood-onset or Adult-onset
• Pulmonary function: Fixed or persistent airway obstruction
• Severity: Mild, Moderate or Severe