Golden Retriever Black Skin Disease. This is present from birth but may be very mild so is not noticed until later in life. Generally they will be diagnosed with it by 3 years old.

Much like allergies they will cause your dog to itch a lot. The belly may also have darkly pigmented dry skin. This is present from birth but may be very mild so is not noticed until later in life.
Set for monday what do you think might be going on.
Much like allergies they will cause your dog to itch a lot. 2012-10-23 Black Skin Disease October 23 2012 Hair loss alopecia accompanied by darkening of the skin hyperpigmentation is often termed black skin disease. This is present from birth but may be very mild so is not noticed until later in life. 2017-05-12 Black skin disease is a common phrase for Alopecia X.