Sarcoptes mites not only affect dogs, but can also be transmitted to humans. The mites easily pass from an infested dog to other dogs that are in close contact. Most of the cases seen in this area seem to be from contact with foxes and native animals. The Sarcoptes mites burrow into the skin, leading to intense itching, hair loss, and skin infections. Confirming a diagnosis of Sarcoptes mites can be difficult as the mites live within the skin and can be difficult to find, especially in mild cases.. Your vet may need to examine multiple skin scrapings under the microscope to identify the mites as they can be very difficult to find.