Section: Overview
Ringworm is a contagious fungal infection of the skin, caused by Microsporum canis. It is not caused by a worm. It is spread from person to person, from animal to person, or indirectly from contaminated objects or the soil. The associated spores can live for years in some conditions. Ringworm infects three sites: scalp, body and nails.Ringworm is considered a "Zoonotic" disease meaning that it can be transmitted from animal to person. There are several organisms that can cause ringworm including Microsporum canis, Microsporum gypseum and Trichophyton mentagrophytes. Ringworm is typically seen in young dogs. Dogs with pre-existing skin disease or trauma are more likely to become infected. Diseases or medications that suppress the immune system generally render that dog more susceptible to ringworm.
Demodicosis (red mange) is a common skin disease of dogs causes by a microscopic mite that are present in small numbers on all dogs. In predisposed individuals the mites increase in number causing disease....
There are many different types of skin lesions that can occur in the skin of dogs, and each lesion or combination of lesions can be caused by multiple diseases and conditions.
Alopecia is the complete or partial lack of hair in any area of the skin where hair would normally be found. In dogs, it may be caused by self-trauma, hair follicle diseases or the failure of hair to grow...
Despite its name, ringworm is caused by a fungus and not a parasite. A fungal culture is often performed to determine if a skin rash or abnormality is related to ringworm and is indicated anytime there...
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