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.
Oily skin. Oily skin: Introduction. Oily skin: The occurrence of what appears like skin which is coated in an oily layers. See detailed information below for a list of 8 causes of Oily skin, Symptom Checker, including diseases and drug side effect causes. Â» Review Causes of Oily skin: Causes | Symptom Checker Â».