Flea bite

What's more it's not just the flea bites that can make your pet scratch - they can also be allergic to the flea saliva.

This is called flea-bite hypersensitivity. Cats are particularly susceptible and can develop itchy crusty spots throughout they're coats.

This is one cause of a condition called military dermatitis and can be initiated by just one flea.

The larvae which develop from flea eggs can become infected with tapeworm eggs.

If your pet eats an infected flea, it can also become host to this parasite.