Canine atopic dermatitis is an allergic skin condition in dogs that causes itching, which can lead to redness, fur-loss, rough or damaged skin. Canine atopic dermatitis (cAD) is an allergic skin condition which affects at least 10% of dogs and is a common cause of long-term itching. cAD, or simply atopy as it is often known, is the dog version of 'eczema' in people. Several different breeds have been shown to be more likely to develop cAD, including Labrador and Golden retrievers, English Springer spaniels, Hungarian Vizlas, Basset hounds, Rhodesian Ridgebacks, Boxers, Chinese Shar Pei, West Highland white terriers, Bull terriers, French Bulldogs, Bichon Frisé and Tibetan terriers. Canine atopic dermatitis (cAD) is a complex condition, which doesn't occur the same way in every dog, particularly between dogs of different breeds. Symptoms of cAD (also referred to as clinical signs) include itchy skin, which may or may not look red or inflamed, and in severe cases the dogs affected skin may become damaged from scratching, become rough or scaly, and they may lose their fur in that area.