What happens when a dog gets skin disease?

A dog with skin disease usually shows hair loss, skin itching, dandruff, bumps, and scabs, and different skin diseases cause different symptoms. Common ones include eczema, mange, bacterial infection, and fungal infection. Eczema is usually from allergies, environment, or other skin issues, causing red, itchy, wet skin that may become bacterial or fungal if untreated.

Mange is a contagious skin disease from mites, causing severe itch, skin inflammation, and hair loss. Bacterial infection shows red swollen skin, pus, and wounds; fungal infection shows hair loss, redness, itch, and dandruff. If skin disease signs appear, take the dog to a vet promptly for diagnosis and treatment.