The ONLY way to produce a tiger or lion with a white coat is through inbreeding brother to sister or father to daughter; generation after generation after generation. The kind of severe inbreeding that is required to produce the mutation of a white coat also causes a number of other defects in these big cats.
Causes of Bumps on Skin. 1  Acne (Pimples) Acne is a localized skin inflammation as a result of overactivity of oil glands at the base of hair follicles. 2  Actinic Keratosis Actinic keratoses are rough, scaly patches of skin that are considered precancerous and are due to sun exposure.
We respect your privacy. Itâs like having goose bumps when youâre not cold. Keratosis pilaris turns soft, smooth skin into sandpaper. This common skin condition most often causes arm bumps, but it can also created bumps on the upper thighs, buttocks, and face. Doctors donât know why some people develop these arm bumps and others donât, but there are ways to treat keratosis pilaris. Normally, skin cells imperceptibly flake off on their own.