Unusual sexual ichthyosis divided into the following four types

(1) dominant genetic unusual sexual ichthyosis: Rough dry skin limbs,smaller thin, white translucent to brown, polygonal, such as order. The side and back limbs, mainly general without subjective symptoms, 1 - 4-year-old inter-incidence, Fuyushige summer light, can be associated with extended arm and limbs, facial hair weeks keratosis and palmoplantar keratoderma. (2) of the genetic ichthyosis: birth to 1 year in the pathogenesis. Large brown black scattered. Both sides of his face, neck, scalp most involved, the ventral than dorsal trunk serious, but also involved the elbow, wrist, popliteal fossa. Almost all were male disease, skin rash in the life of almost no change. (3) lamellar ichthyosis: autosomal recessive genetic, health, or shortly after birth incidence, rash as a gray brown, quadrilateral, the Central adhesive edge free, general diffuse erythema, only mild to happen in cubital fossa, popliteal fossa and neck. Palmoplantar moderate Hyperkeratosis, such as volcanic mouth in the hair follicle samples. Some patients face valgus. (4) epidermolysis bullosa of Hyperkeratosis ichthyosis: autosomal dominant inheritance. Skin redness at the time of birth, the horny scales such as thicker armor-like, but also have blisters, after be shedding new scales can be formed.
Summary: ichthyosis Although insignificant (a small number of patients with micro-itch), but the next generation may be genetic, young people brought to the psychological pressure, affect normal study, life, causing pessimism, therefore, people should be broad attention.