For psoriasis disease, many patients do not know much. And for psoriasis hereditary problem has always been more concerned about, so we are very worried, some patients and friends found the disease, do not dare to have children. Especially female patients, more afraid of their own disease will be inherited to the child, so that the child to bear a lot of pain. So, will psoriasis occur after the occurrence of heredity? Will psoriasis be contagious in the same room? Psoriasis will have hereditary? 1, psoriasis is a kind of chronic skin disease, this disease is recurrent and incurable, at present, most people think that its incidence of triggers and heredity, infection, mental emotion, external environment, drugs and chemical stimulation, from the common triggers of psoriasis, we found that there are genetic factors, it can be seen that psoriasis can be hereditary, according to the clinic, this disease often has a family history, and there is a tendency of heredity. 2.Foreign countries have reported that 30%-50% of people have family history, and even some individuals emphasize up to 100%. Domestic reports have a family history of 10% -20% or so, about the mode of inheritance, some people believe that the autosomal dominant inheritance, with incomplete epigenetic rate, and some people believe that the autosomal recessive inheritance or sex-linked inheritance. 3, one of the parents suffers from psoriasis, the incidence rate of its descendants is 3 times higher than that of healthy children, if both parents suffer from psoriasis, the incidence rate of its descendants is higher, it is obvious that psoriasis will be hereditary, but the patients should not worry, psoriasis is only a relative heredity, not an absolute heredity, so whether the next generation will be left behind depends on the external factors, that is to say, the patients with psoriasis can lower the rate of heredity. Although psoriasis disease is hereditary, but the disease hereditary probability is actually not high. It is suggested that patients can avoid these problems by controlling their condition in time and choosing a reasonable conception period. As long as you do a good job of daily health care, develop good living habits, have a healthy psychology, and maintain the balance and stability of the internal environment, you can also reduce the incidence of psoriasis.