Giant Schnauzers are more docile than their black-furred counterparts. Health Giant Schnauzers require regular grooming. Their beard can collect drool and food particles, making frequent cleanings essential. If being shown, their coat needs to be stripped every two to four weeks. If they are simply a companion animal, the coat can be clipped instead. Some Giant Schnauzers have an allergy to shampoo. Hip and elbow dysplasia are common. Giant Schnauzers are also prone to eye problems such as keratoconjunctivitis sicca, glaucoma, cataracts, multifocal retinal dysplasia, and generalized progressive retinal atrophy. They are also prone to skin diseases, such as seasonal flank alopecia, vitiligo, and follicular cysts. Cancer of the skin is common in dark-colored dogs, with the most frequently occurring varieties being melanoma of the limbs and digits, and squamous cell carcinoma of the digit. This susceptibility occurs because melanoma is caused by a defect in the melanocytes, the cells that darken the color of the skin. Noncancerous skin tumors are also common. Some Giant Schnauzers develop central diabetes insipidus, autosomal recessive hypothyroidism, selective malabsorption of cobalamin, narcolepsy, cataplexy, and various seizure disorders. Some are also sensitive to sulphonamides and gold. Bone diseases and joint problems are also an issue. The most common causes of death in Giant Schnauzers are lymphoma and liver cancer, followed by heart attacks and heart failure. See also Black Russian Terrier References External links Dog breeds originating in Germany FCI breeds de:Schnauzer#Riesenschnauzer