At what age is asthma most likely to happen to a child? I want to be aware and ready if that occurs.

Childrens, those having asthma develop their first symptoms before the age of 5 yrs. However, asthma in young children can be hard to diagnose. Symptoms & Signs: 1.Coughing 2.Wheezing 3.Dysfunctional breathing 4.Chest tightness.