Leukoplakia, is a medical term for a number of diseases with white patches of skin as the main symptom. Also known as vitiligo or leukoplakia, is familiar with the skin disease section, the main clinical manifestations seem to be part of the pigment take-off of the skin and produce white patches, and then gradually diffuse patches and spread. It is an acquired skin pigmentation loss disease, manifested as localized or generalized pigment loss. The prevalence is about 0.5% to 2% and arises worldwide. The disease can involve all races and is generally less prevalent in people with lighter skin color and more prevalent in people with darker skin color.

The formation process of skin leukoplakia

1, congenital leukoplakia: leukoplakia can be congenital or acquired. Congenital leukoplakia may be caused by various reasons during embryonic development, generally at birth or shortly after birth, the skin will appear white patches, such as a pigmentless nevus, anemic nevus, anaplastic pigmentation incontinence and so on, the distribution of these white patches is generally more limited or has certain characteristics, and the color of the white patches will not be very white. With growth and development, these white spots will neither fade nor expand significantly to the surrounding area after stabilization.

2. Acquired white spots: there are many reasons for acquired white spots. Since the skin is in direct contact with the external environment, the appearance of white spots on the skin has both intrinsic causes and may be caused by external environmental factors, such as sun exposure, chemicals, fungal infections, etc. There are many skin diseases that can cause skin discoloration. There are many skin diseases that can present with hypopigmentation over depigmentation. Some inflammatory skin diseases can appear as localized white spots on the skin, which are usually preceded by other inflammatory skin diseases such as eczema and psoriasis, which destroy the melanocytes in the basal layer of the skin and cause loss of skin pigmentation.

The difference between leukoplakia and vitiligo:

Leukoplakia is a lot of diseases among them are: vitiligo, albinism, sweat patches, pemphigus, white furfur and so on. White spots are not necessarily vitiligo, but vitiligo is white spots. Seborrheic dermatitis is a chronic inflammatory skin disease characterized by erythema with fine flaking. The skin damage is characterized by fading. In the process of skin damage fading or after healing, often left in the affected area pigmentation gradual class, which is confused with the early symptoms of leucoderma. Hypopigmented spots caused by seborrheic dermatitis are mostly found in areas with more sebaceous glands, such as the face, chest, upper back and perineum and thighs, and the decoloration is often incomplete, with fuzzy edges and irregular shapes. The shape is also irregular, with orange-red, sometimes more or less visible greasy scales on the white spots, according to these characteristics can still be distinguished from leucoderma.

The treatment of the white spot is completely cured; the white spot shrinks, but fails to subside completely; the white spot stops developing, but also did not shrink. The former situation is undoubtedly the best end, the latter two cases are generally considered to have been more stable, and can be referred to the stable stage for treatment.

2, the disease is not effectively controlled, the disease continues to progress.