A coyote that is infected with mange can display an obvious thinning of hair or completely bald spots on its skin. Its skin will also thicken and begin to develop wrinkles, scabs and crust. In prolonged cases, the coyote may appear weak or emaciated.
Mange is a treatable skin disease caused by mange mites. Mange mites are microscopic arthropods that burrow into soft tissue. These mites spread through body contact between affected mammals or by common-place sharing of places such as nests and burrows. Mange is a serious disease that can cause blindness, difficulty eating, impaired hearing and death due to exposure because of the lack of insulating fur. Infected animals can be treated for mange with oral medications.