Canine Mange: Welfare and Treatment of Sarcoptic and Demodectic Forms

Mange mites cause two distinct welfare conditions in dogs: highly contagious sarcoptic mange causing intense itch, and demodectic mange associated with immune compromise.

Key Facts

Sarcoptic mange is caused by Sarcoptes scabiei mites and is intensely pruritic and highly contagious
Demodectic mange is caused by Demodex canis mites and occurs when immune function is compromised
Sarcoptic mange can be transmitted to humans causing temporary but intensely itchy skin lesions
Isoxazoline products provide highly effective treatment for both forms of mange
Wildlife including foxes and badgers are reservoirs for sarcoptic mange that can infect dogs

Welfare Considerations

Sarcoptic mange causes intense suffering: the Sarcoptes mite burrows into skin, causing relentless itch that leads to self-traumatising scratching, hair loss, skin thickening, and secondary bacterial infection. Dogs with severe sarcoptic mange can scratch until their skin bleeds, causing open wounds and intense misery. The suffering from severe, untreated sarcoptic mange is acute and prolonged. Demodectic mange causes variable welfare impacts depending on its extent; severe generalised demodectic mange indicates significant immune dysfunction and causes secondary skin infections causing pain and discomfort. Modern isoxazoline treatments including sarolaner and fluralaner provide rapid and effective cure for sarcoptic mange, making prompt treatment both possible and essential.

What You Can Do

Seek prompt veterinary treatment for any dog showing intense scratching, hair loss, or skin crusting
Report wildlife with mange signs to local wildlife rehabilitation organisations for humane assessment
Treat all in-contact dogs when one dog is diagnosed with sarcoptic mange
Investigate underlying immune dysfunction in dogs with generalised demodectic mange