“牛皮癣”即银屑病。现代医学认为银屑病的发生一般是由遗传因素、环境因素等多方面原因导致的慢性皮肤性。与前文所提的红斑狼疮在某些方面相似，均有免疫介导因素的参与，且在银屑病的发生和发展过程中有极大作用。
Modern medicine holds that psoriasis is a chronic skin disease caused by multiple factors such as genetic and environmental factors. Similar to lupus erythematosus mentioned earlier in some aspects, it involves immune - mediated factors, which play a crucial role in the occurrence and development of psoriasis.
Approximately 8% of the DNA in the human body is derived from the remnants of retroviruses that infected ancient human ancestors. These retroviruses reverse-transcribed their own RNA into DNA, which integrated into the human genetic material and has been inherited by humans to the present day.
红斑狼疮是一种慢性且易反复发作的自身免疫性疾病，常见于20~40岁女性。根据病变部位进行分类，分别为局限在皮肤的皮肤型红斑狼疮（CLE）和累及全身脏器的系统性红斑狼疮（SLE）。
Lupus erythematosus is a chronic and relapsing autoimmune disease, commonly affecting women aged 20–40 years. Based on the site of pathological involvement, it is classified into cutaneous lupus erythematosus (CLE), which is confined to the skin, and systemic lupus erythematosus (SLE), which affects multiple organs throughout the body.