Flea breeds on Australian Terriers are mostly caused by bacteria. It is recommended that owners bathe Australian Terriers immediately after discovering them, clean the hygiene at home and the Australian Terrier's daily necessities, and then purchase internal and external anthelmintics and bactericidal sprays , remove parasites and spray them daily, feed more food containing vitamins in the diet, take the dog out less, and let the Australian Terrier bask in the sun more.