Blame it on climate change. Cats are getting more fleas, and flea allergy dermatitis in cats is becoming more common, according to Banfield Pet Hospitals' 2018 State of Pet Health Report.
The report says there's been an astonishing 67 percent increase in flea allergy dermatitis in cats since 2008. In 2017, 170 of every 10,000 cats seen at Banfield hospitals had the allergic reaction to fleas. In 2008, just 102 of every 10,000 cats developed flea allergy dermatitis.
Some cats are so sensitive to fleas, just one bite can cause an allergic reaction, or dermatitis.