"Is Skin Whitening Always Indicative of Vitiligo?"

Skin White Patches: Causes and Treatments

Generally, skin white patches can be indicative of vitiligo, but they can also result from diseases such as pityriasis versicolor or white atrophy. Let's delve into the details:

1. Vitiligo

Vitiligo is a common acquired depigmentation disorder characterized by localized or generalized complete loss of skin and mucosal pigmentation. Clinically, it presents as milky white patches of varying sizes with clear borders, smooth surfaces without scales, and patients may experience no symptoms or mild itching. Mild cases can be treated with topical medications like tacrolimus ointment and pimecrolimus cream under medical supervision. More severe cases may require phototherapy.

2. Pityriasis Versicolor

Caused by Malassezia fungal infection of the epidermal stratum corneum, pityriasis versicolor is a superficial fungal disease. It is characterized by punctuate lesions centered around hair follicles, which can appear in various colors ranging from brown, pale yellow, to black, often accompanied by greasy skin and itching. Treatment involves using ketoconazole shampoo as prescribed to alleviate symptoms.

3. White Atrophy

White atrophy can be genetic or caused by abnormal autoimmune system function, leading to localized skin whitening, thickening, and even pain. Genetic cases may be treated with skin grafting, while autoimmune-related cases require medication such as prednisone acetate tablets and methotrexate tablets.

Other possibilities include psoriasis, highlighting the importance of timely medical consultation for diagnosis. Daily hygiene is crucial; avoid scratching affected areas to prevent worsening symptoms.