Vitiligo (బొల్లి) causes well-defined pale or milk-white patches on the skin. It happens because the pigment-producing cells of the skin — melanocytes — are lost from those areas. It is an autoimmune condition: the body's own immune system is involved.
What vitiligo is not
These beliefs are widespread in Andhra Pradesh and cause real harm — patients delay treatment for years, and families are treated unfairly. None of them is true:
- It is not contagious. It cannot spread by touch, sharing food, sharing clothes, or living in the same house.
- It is not caused by eating milk and fish together, or by any other food combination. No food causes vitiligo and no dietary restriction treats it.
- It is not a punishment, a curse, or a result of anything anyone did.
- It is not leprosy. The patches in vitiligo have completely normal sensation — this is one of the ways the two are distinguished.
What actually causes it
The immune system attacks melanocytes. Why this begins is not fully understood, but genetic predisposition plays a part — around one in five patients has a relative with vitiligo. It is associated with other autoimmune conditions, most commonly autoimmune thyroid disease, which is why thyroid function is usually checked.
Patches sometimes appear first at a site of injury, friction or pressure.
How we diagnose it
Usually by clinical examination. A Wood's lamp examination makes patches more clearly visible — particularly useful on fair skin or where the edges are indistinct — and helps distinguish vitiligo from other causes of pale patches such as pityriasis alba, post-inflammatory hypopigmentation, or fungal infection. Where the picture is genuinely unclear, a small skin biopsy settles it.
We also assess whether the vitiligo is stable or actively spreading, because that determines which treatments are appropriate. Surgical options, for instance, are only suitable for stable disease.
Treatment options
- Topical corticosteroids — for limited patches, used in planned courses with review, not indefinitely
- Topical calcineurin inhibitors (tacrolimus) — particularly suited to the face and eyelids, where long-term steroids are unsuitable
- Narrowband UVB phototherapy — the mainstay for widespread vitiligo; given as repeated sessions over months
- Targeted phototherapy — for a small number of localised patches
- Oral treatment — used in short courses to halt rapidly spreading disease
- Surgical treatment — melanocyte transfer or punch grafting, for patches that have been completely stable for at least a year and have not responded to medical treatment
- Sun protection — depigmented skin has no natural protection and burns easily; this matters year-round in coastal Andhra Pradesh
What response to expect
Response depends heavily on where the patches are:
- Face and neck — respond best, often substantially
- Trunk and limbs — respond reasonably well
- Hands, feet, lips and areas over bone — respond least well, because there are few reservoir melanocytes there
- Hair-bearing areas — repigment better, since follicles hold a melanocyte reserve; patches where the hair has itself turned white respond poorly
Repigmentation is slow. It typically appears first as small dark dots within the patch, spreading outward over months. Three to six months of consistent treatment is a fair point at which to judge whether an approach is working.
The honest position
Vitiligo can often be repigmented substantially, and its spread can usually be controlled. But it is a long-term condition, not one with a guaranteed permanent cure, and patches can recur. Anyone promising complete permanent clearance in a few weeks is not being straight with you.
What is also true is that the psychological and social burden of vitiligo is frequently greater than the medical one — especially for young people and for women around marriage. That is a legitimate part of the consultation, not something to be brushed aside, and it is worth raising.