The best place to find fleas is around your pet’s tail base or ears. A flea comb can be used to find adult fleas and their faeces. Flea faeces are digested blood, and they look like small specks of dark red dirt.
A useful test is the white paper test; brush your pet’s coat vigorously over a sheet of white paper to look for fleas and their faeces. Moistening the paper will cause a red halo to form around the flea faeces, this is useful for distinguishing between dirt and flea faeces.