What is the reason for long white shifts on the body

In daily life, I believe that many people have some skin problems. Some people have acne or spots on their skin. This is caused by pigmentation and endocrine disorders. There is also a kind of white spots. If there are white spots on the body, it should be considered that it may be related to skin development and pigmentation, and it needs to be confirmed after examination.

Pathological etiology

The cause of congenital vitiligo may be due to various reasons during embryonic development. Generally, white patches appear on the skin at birth or shortly after birth, such as achromic nevus, anemic nevus, achromic incontinence pigmenti, etc. The distribution of these white spots is generally limited or has certain characteristics, and the color of the white spots will not be very white. As the skin grows and develops, these white spots will neither fade nor expand significantly after stabilizing.

There are many causes of acquired vitiligo. Since the skin is in direct contact with the external environment, the appearance of white spots on the skin may be caused by both internal reasons and external environmental factors, such as sun exposure, chemicals, fungal infections, etc. There are many skin diseases that can cause skin hypopigmentation or depigmentation. Some inflammatory skin diseases can cause white spots on local parts of the skin. These white spots usually occur before other inflammatory skin diseases, such as eczema and psoriasis, which destroy the melanocytes in the basal layer of the skin and cause skin depigmentation.

Disease diagnosis

Diagnosis and differential diagnosis of white spots on the skin

Don't assume that white spots on the skin are vitiligo. White spots on the skin involve many skin diseases. It can be an independent skin disease or a symptom of a certain skin disease. If you find white spots on your skin, you should go to the hospital for a clear diagnosis.

1. Basic diagnostic points for vitiligo: Irregular pure white patches of varying sizes, single or multiple, appear on the hair, face, trunk, limbs and other parts of the body. The area of ​​white spots gradually expands and the number increases. The boundaries of the white spots are clear, the hair inside the spots is also white, the surface is smooth, there is no scale or scab, and the sensory and secretory functions are normal. Vitiligo is sensitive to sunlight and turns red when exposed to the sun.

2. Vitiligo needs to be differentiated from the following diseases:

1. Anemic nevus: localized hypopigmented spots, not depigmentation. The disease occurs since childhood and has no tendency to expand. When the skin lesions are rubbed vigorously, the local area does not turn red, while the surrounding normal skin turns red.

2. Mottled disease: It is an autosomal dominant genetic disease. Skin lesions are present at birth, most commonly on the forehead, accompanied by white hair. The white spots are often triangular or diamond-shaped. Rashes may also occur on the chest, abdomen, and proximal limbs. The size of the lesions does not change with age. Some patients may also have other developmental abnormalities.