But other mysteries abound, particularly related to Jackson's appearance, which changed dramatically from his early adulthood ...

"There were times when I felt alone, frustrated, and insecure," said Reuben K. Sam, who has lived with the condition for decades.

Vitiligo on the penis occurs when patches of skin change color, just as they can on other parts of the body. These melanin (skin pigment) changes occur in about 1% of the United States population ...