Ichthyosis (American bulldog type) is an inherited condition of the skin affecting American bulldogs. Affected dogs present as early as 1-2 weeks of age with flaky skin and a scruffy haircoat when compared to normal littermates. Typically before 6 weeks of age the skin of the abdomen is reddened, wrinkled, and covered by light brown scales. As the dog ages the sparsely haired areas of the dog become red-brown with adhered brown scales and large white to tan scales are found throughout the haircoat. Dogs may also have thickened footpads. Affected dogs are at increased risk for infections of the skin, ears, and footpads and may require treatment for these infections throughout their lives.