Tests and diagnosis
Medical history and exam
If your doctor suspects you have vitiligo, he or she will ask about your medical history, examine you and try to rule out other medical problems, such as dermatitis or psoriasis. He or she may use a special lamp to shine ultraviolet light onto the skin to determine whether you have vitiligo.
Skin biopsy and blood draw
In addition to gathering your personal and family medical history and examining your skin, your doctor may:
Take a small sample (biopsy) of the affected skin
Draw blood for lab tests
Your doctor may recommend that you see an eye specialist (ophthalmologist), who may check for inflammation in your eye (uveitis). Your doctor may also suggest that you see a hearing specialist (audiologist) to undergo a hearing evaluation because people with vitiligo may have an increased risk of hearing loss.