Extensive skin scaling

Introduction Normal human skin is constantly undergoing daily metabolism, especially when the surface is constantly renewed, keratinized, and some dead skin is produced, which will cause skin desquamation. However, this physiological phenomenon is generally not felt because of the small amount. If there is a lot of skin desquamation in the skin, it should be considered as a manifestation of the disease. A large amount of skin desquamation in the courseware under pathological conditions. Rice bran-like desquamation is common in measles; flaky desquamation is common in scarlet fever; silver-white scaly desquamation is seen in psoriasis.

Cause

The main reason for the skin to maintain its smooth, delicate and elastic appearance is the complete protection of the stratum corneum. The proper lipid and moisture content in the stratum corneum and the natural moisturizing factor are indispensable for maintaining the normal stratum corneum function of the skin. However, as the age increases, the moisture content of the stratum corneum will gradually decrease, and the skin will appear dry, tight, rough and desquamation.

The lipid content or water content of the stratum corneum is affected by factors such as age, gender, nutritional status and season. The older the age, the more the lipid composition in the stratum corneum is reduced, and the lipid content in winter is significantly lower than that in summer. . In addition, the normal acidity and alkalinity of the skin surface is maintained at 6, which contributes to the stability of the lipid in the stratum corneum. Therefore, any irritant or solvent will change the environment of the skin with weak acidity, and will also change the stratum corneum lipid. Ingredients. In addition, the lack of essential fatty acids will directly affect the integrity of the stratum corneum lipid component.

an examination

Related inspection

Skin elasticity examination skin smear microscopy

The skin looks dull, dry, scaly, rough and uneven to touch, often accompanied by itching, peeling, chapping and other symptoms, and even the formation of wrinkles, spots and so on.

Differential diagnosis

There are several common situations.

1, rice bran-like desquamation: the most common in measles.

2, flaky desquamation: common in scarlet fever.

3, silvery white scaly desquamation: seen in psoriasis, that is, the psoriasis said by the people, more common.

4, winter skin desquamation is a very common skin problem, but also a nightmare for patients with desquamative skin diseases such as ichthyosis, psoriasis, senile pruritus, especially in the elderly.

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