There isn’t a link between vitiligo on the scalp and hair loss, as far as researchers know. The condition can cause patches of skin and hair to turn white, but it doesn’t cause the loss of hair. It’s believed to be an autoimmune condition.
Alopecia areata is a condition in which there are patches of hair loss on the scalp and sometimes on the body. Like vitiligo, it’s believed to an autoimmune condition. It’s possible for a person to have more than one autoimmune condition at the same time, so some people have both vitiligo and alopecia areata. The conditions are separate disorders, however. Just because a person has one of them doesn’t mean that they are bound to get the other.