1.Is psoriasis contagious? Psoriasis is an abnormal immune function skin disease, and this immune abnormality is determined by genes, so psoriasis is not contagious but can be inherited to offspring. 2.Does psoriasis run in families? There is no psoriasis in my family, why do I have psoriasis? It belongs to autosomal polygenic inheritance, and the gene loci are close to or homologous with many gene loci of human leukocyte antigens, so any factors that cause human immune response, such as infection, mental stress, trauma, etc., can trigger psoriasis. Just because psoriasis belongs to autosomal polygenic inheritance, in the genetic phenotype is not generations of patients, in general, the onset of age early such as <40 years old patients, their family psoriasis patients, the onset of age late >40 years old, the family is more than no clear family history of psoriasis. 3, psoriasis old recurring, can “remove the root”, no recurrence? Psoriasis is a complex genetic disease, the current level of medicine can not correct the wrong genes, the so-called Chinese medicine to change the genes is impossible. The number and loci of the disease genes in each person determine the severity of the disease. Some people have only one attack and no recurrence for 30 years, while others have the disease year after year. Our treatment of psoriasis can only control the disease and reduce recurrence at the current medical level. 4. How to treat psoriasis during pregnancy? No oral medication should be taken during pregnancy, especially before the fourth month of pregnancy, and no medication should be used as far as possible. If there are exposed areas that need to be treated, a small amount of weak hormone ointment such as hydrocortisone butyrate ointment should be applied topically after the fourth month of pregnancy. 5.Will oral medication affect future pregnancies, how can women prepare and how can men prepare for fertility? Some drugs have an effect on both sperm and eggs, such as methotrexate and rhodopsin. Young men and women of childbearing age who have plans to have children should not use similar drugs for at least 2 years. Retinoic acid, such as Aveline, retinoic acid ester, isotretinoin has a teratogenic effect on the fetus, and the drug remains in the body for a long time, women need to stop taking it for 2 years before they can get pregnant. 6.The treatment choice of psoriasis? Psoriasis is mild to moderate, with <10% of the lesion area being mild and >10% being moderate to severe. Mild patients only need topical medication, while moderate to severe patients need oral medication and UVA or UVB phototherapy. Emphasis is placed on personalized treatment, and treatment plans are formulated for each psoriasis patient. 7, the new treatment of psoriasis Biological agents are new drugs developed in recent years, research on psoriasis found that certain cytokines play an important role in the pathogenesis of psoriasis, such as tumor necrosis factor, so artificially manufactured antagonists against tumor necrosis factor such as tumor necrosis factor or its receptor antibodies, because the drug itself is an antibody, a protein, so this type of drug is called biological agents.