Is there a difference between white patches and vitiligo?

Written by Huang Ling Juan

Dermatology

Updated on March 30, 2025

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White patches and vitiligo have clear distinctions.

White patches primarily refer to localized hypopigmentation on the skin, a type of macule where pigment loss occurs due to a reduction in function or number of melanocytes. White patches can appear on the skin due to various reasons or diseases, including post-inflammatory hypopigmentation, tinea versicolor, and pityriasis alba.

Vitiligo, on the other hand, usually refers to a specific skin condition. The causes of vitiligo are multiple and can be related to psychological factors, autoimmune dysfunction, leading to the destruction and reduction in melanocytes. The appearance of white patches in localized skin areas is called vitiligo, and its typical lesion is also a localized white patch, which is a type of white patch.

Therefore, diseases causing white patches could potentially include vitiligo or other conditions. Vitiligo is just one possible cause of white patches.

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Written by Liu Gang

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Will vitiligo recur after skin grafting?

Vitiligo generally enters a stable phase after which skin grafting is quite effective. The stable phase is typically reached when, after about a year of treatment, there are basically no changes, no worsening or improvement in the condition, which is referred to as the stable phase. Using the method of skin grafting to directly implant melanocytes into the depigmented regions tends to be effective. Generally, after skin grafting, melanin quickly proliferates and extensively covers the depigmented areas. However, the factors causing this disease are quite complex. Some individuals, especially those with lower immunity, might experience recurrence even after a successful graft. Therefore, personal health status and clinical evidence should be considered individually.

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Dermatology

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What are the early symptoms of vitiligo?

The early symptoms of vitiligo generally appear as a white patch on a localized area of the skin. Initially, the color is not very white, appearing as a vague, hazy white patch. As the condition gradually progresses, the color of the patch becomes whiter and its area expands. If the white patch appears in areas with hair, such as eyebrows, armpits, or the scalp, the hair in these areas will also gradually turn white. Some patients with vitiligo may experience localized itching, but most patients do not experience any discomfort. Once vitiligo is discovered, it is crucial to seek formal treatment at a hospital. Generally, a combination of oral and topical medications, along with 308 laser therapy, yields relatively good results. Treatment can be more challenging if the affected area is large, whereas smaller areas are relatively easier to treat.

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Dermatology

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Is the appearance of white spots on the back vitiligo?

White patches on the back are not necessarily vitiligo; they could also be tinea versicolor. Tinea versicolor is caused by a fungal infection, generally contagious, and may gradually increase in number after the appearance of one. Additionally, these patches are somewhat blurry in color, not the porcelain white typically seen with vitiligo. If it is vitiligo, the situation is more complicated, and it is necessary to seek formal treatment at a dermatology department of a standard hospital. In the current situation, it is advisable to visit a dermatology department in a formal hospital and use a Wood's lamp or dermatoscope for differential diagnosis to definitively determine if the condition is vitiligo. If it is tinea versicolor, applying antifungal cream alone can completely cure it. If it is vitiligo, a comprehensive treatment is required, involving oral and topical medications, along with 308-nm excimer laser therapy.

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Written by Liu Gang

Dermatology

52sec

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What to do if vitiligo spreads during pregnancy?

Generally speaking, during pregnancy, due to reduced immunity, hormonal changes, or deficiencies in vitamins and trace elements, vitiligo can spread and worsen. Using oral and topical medications during this period is troublesome, and pregnant women are generally advised against taking medications. It is advisable to visit the dermatology department of a regular hospital for localized 308 laser treatment, which does not affect pregnant women. It is essential to seek treatment at a reputable medical institution where a doctor can diagnose and provide a treatment plan. During pregnancy, it is recommended to consume more black-colored foods such as black rice, black beans, black sesame, wood ear mushrooms, and mushrooms, while avoiding consuming too much vitamin C-rich food like strawberries, oranges, tomatoes, pineapples, and mangoes.

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Dermatology

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What are the characteristics of the stable period of vitiligo?

The stable phase of vitiligo is defined as a period of at least six months, or even more than a year, during which there are no changes in the localized white patches on the body, regardless of whether treatment is administered or not. During this phase, the white patches neither progress nor recover. Treatments during the stable phase are generally not very effective; oral medications, topical applications, and even treatment with a 308 laser typically show little change. The most common treatment plan during the stable phase still involves melanocyte transplantation. Patients should visit a dermatology department at a certified hospital to get a proper diagnosis and specific treatment. During the treatment period, it is important to enhance physical exercise to boost immunity, consume foods rich in black pigments, and limit intake of foods high in Vitamin C. After recovery, measures should be taken to prevent relapse and consolidate the treatment results.