Mr. Zhang, an employee of a company, accompanied his newly married wife with psoriasis to see a doctor one day. Because his wife's skin damage is not much, Mr. Zhang hoped that we quickly cure his wife's disease, they plan to have a child, so as not to pass on the disease to future children. After hearing this, as a doctor, I had to put down the pen in the hand, to the couple about heredity is how.

        Medical science divides genetic diseases into many types, no matter which type, the fundamental reason is that there is a problem with genetic material, the genetic material that goes wrong, along with other normal genetic information, is passed from the parents to the offspring in different ways, in the offspring whether the disease is affected by a variety of factors. In the process of genetic material passed, it would be possible to those who have the problem of genetic information is not passed, or part of the transfer, the offspring of disease depends on the problem how the intensity of the role of genetic material, if the genetic material of low intensity effect, need a lot of similar, or a series of genetic material accumulation together with collaborative functions can have certain effect. Even if there is a certain amount of accumulation of these genetic materials, it still needs some acquired factors to participate in the development of the disease in the future, which is the most obvious manifestation in the so-called complex diseases or polygenic diseases. Psoriasis is one of these diseases. It is a complex disease, or polygenic pattern of inheritance.

        The occurrence of psoriasis is not only the accumulation of multiple genes, but also affected by environmental factors. Therefore, according to the characteristics of heredity, the information of the disease is likely to be passed on to the next generation. It can be said that psoriasis can be inherited, and the disease often shows a family history. However, postnatal factors also play an important role. Many people, even if they have a family history, will never develop psoriasis. Psoriasis vulgaris does not interfere with pregnancy and childbirth. Moreover, during pregnancy, the rash of psoriasis vulgaris is mostly attenuated or even subsided due to increased levels of corticosteroids in the body.

        The idea put forward by Mr. Zhang that once the disease is cured, it will no longer be inherited is wrong. The presence of genetic material cannot be changed by our usual treatment methods. Whether or not the disease is treated, the chance of its inheritance to our offspring still exists, which is not transferred by our will.