Having a skin disease is a very painful thing, many families with skin disease are very worried before preparing for the next generation, especially now with the opening of the two-child policy, many people are preparing for the second child, they have a skin disease, the child will also have such a skin disease? Will skin diseases be inherited or not? Hereditary skin diseases are caused by a parent passing on their own abnormal or mutated genes to the next generation, resulting in skin damage specific to that gene at birth or later. Non-inherited congenital dermatoses are rare and are mainly diseases of the skin and its appendages caused by nutritional, viral or microbial infections, or chemical or physical disturbances during the development of the fetus in the mother’s body. Common hereditary skin diseases: There are more than 100 known hereditary skin diseases, such as freckles, ichthyosis, albinism, etc. There are four types of hereditary skin diseases that are inherited as follows: A significant proportion of skin diseases are inherited. Hereditary skin diseases are skin diseases caused by disease-causing mutations. The disease-causing mutations follow the general law of inheritance, that is, patients appear in a certain number of proportions in their parents and grandchildren, and are only passed vertically between the upper and lower generations of the family, without involving the family bloodless inheritance. 1, autosomal dominant inheritance ichthyosis, callus formation, follicular keratosis, hyperhidrosis ectodermal dysplasia, A Bin syndrome, vasodilatation, familial chronic benign aspergillosis and other skin diseases are autosomal dominant inheritance, such skin diseases at least one of the two parents is a patient, the children have a 50% chance of inheritance, and sex is not relevant. Most of these diseases are not severe and do not affect life, survival, etc. Autosomal dominant inheritance accounts for about 70% of hereditary skin diseases. 2, autosomal recessive inheritance albinism, congenital ichthyosis, coloring dry skin disease, congenital porphyria, lipoprotein-like deposition, hemochromatosis, congenital closed sweating ectodermal dysplasia, etc. are autosomal recessive inheritance. These genetic disorders have two normal parents but a sibling with the disease, with a higher incidence in the family of both parents. Patients have significant physical and intellectual developmental impairments. 3.Gender-linked inheritance Gender-linked hereditary ichthyosis, congenital ectodermal dysplasia, congenital dyskeratosis, diffuse body angiokeratoma, and vulgar pore keratosis all belong to gender-linked inheritance. This kind of skin disease has the characteristics of more men than women and intergenerational inheritance. 4, polygenic inheritance seborrheic dermatitis, acne vulgaris, lupus erythematosus, psoriasis, hirsutism, baldness, etc. belong to polygenic inheritance. These skin diseases are genetic characteristics determined by several pairs of genes and are influenced by environmental factors, with a significantly higher incidence in families than in the general population. Treatment of hereditary dermatoses The diagnosis and treatment of hereditary dermatoses has been a popular area of research in the field of dermatology internationally. Many hereditary skin diseases have had their causes identified and definitive treatments have been found. For example, ichthyosis. However, there are many genetic skin diseases for which no effective treatment is available, even if the cause is known. Nowadays, the combination of Chinese and Western medicine has been applied to treat polygenic skin diseases such as psoriasis, baldness, seborrheic dermatitis, etc., and good results have been achieved. It is believed that more and more of these skin diseases will be overcome in the near future.