Vitiligo cure is possible if it is diagnosed on time, so don't ignore a white patch and consult to a doctor as soon as you encounter one, as it is better to nip it in the bud. But hypo-pigmentation is not just sign for Vitiligo many other diseases like HIV, Oral cancer and leprosy has same sign so it is highly recommended not to ignore any irregular white patch on any part of body and get checked as soon as possible.