What does hereditary dermatosis have?

summary

Hereditary skin diseases are transmitted from the parents to the next generation with their own abnormal or mutated genes, so that the next generation will have the specific skin damage of the gene at birth or later. The number of non hereditary congenital skin diseases is very small. It is mainly caused by nutrition, virus or microorganism infection, or chemical and physical factors during the development of the fetus. What does hereditary dermatosis have? Next, I'd like to share my views with you.

What does hereditary dermatosis have?

The first is chromosome recessive inheritance. Such skin diseases are normal, but their siblings may be ill. The incidence rate of parents is high. There is no continuous generation of inheritance. The physical and mental development of patients is obviously impaired, and the prognosis of life is poor.

Second: sex linked inheritance, this kind of skin disease has the characteristics of male more than female, intergenerational inheritance, all the sons born to female patients, and the father of female patients must be symptomatic patients. Sex linked hereditary skin diseases are common: sex linked hereditary ichthyosis, congenital ectodermal dysplasia, congenital dyskeratosis, diffuse systemic vascular keratoma, atrophic pore keratosis, etc.

Third: polygenic inheritance. Such skin diseases are characterized by genetic characteristics rather than a pair of genes, but rather by a number of genes determined by the genetic mode, which is greatly influenced by environmental factors, and the incidence rate of the family is obviously higher than that of the general population. The common skin diseases of polygenic inheritance include seborrheic dermatitis, acne vulgaris, lupus erythematosus, psoriasis, hirsutism, alopecia areata, etc.

matters needing attention

1. Pay attention to the "external environment" of both men and women at the time of conception, for example, they are in close contact with toxic and harmful substances (such as receiving radiotherapy or spraying pesticides, etc.), or they are applying certain drugs that can cause damage to the embryo, so they can not conceive immediately. Avoid the harmful environment for a period of time before pregnancy. 2. Choose the right time to conceive. The age of both husband and wife should be appropriate. If the woman is over 35 years old, the chance of children suffering from congenital stupidity can be increased about 10 times; The man's age should not exceed 50.