Asthma is the most common respiratory disease among cats. Any age or breed can be affected. Coughing is one of the earliest signs of asthma in cats. It is not uncommon for owners to think their cat is trying to cough up a hair ball. The difference with asthma is cats will crouch low or sometimes lay on the floor and cough several times with nothing coming out. In severe asthma attacks, cats may show signs of respiratory distress where breathing is vigorous and labored. Always seek veterinary attention if you believe your cat has had an asthma attack.