Psoriasis (psoriasis) is a common chronic inflammatory skin disease. It is a polygenic disease that can be triggered by a variety of stimulating factors, such as trauma, infection, and medications that may induce the disease in susceptible individuals. The physiological mechanisms of the disease are mainly the abnormalities of epidermal proliferation and differentiation and the activation of the immune system. The onset of the disease is mainly in young and middle-aged people, and it has a greater impact on the physical health and mental condition of patients. So, what are the causes of psoriasis? What are the ones that need attention? 1, “psoriasis” and “psoriasis” is the same thing? The name “psoriasis” has two meanings, that is, the Chinese medicine called “psoriasis” is equivalent to the Western medicine dermatology “neurodermatitis”, while the common people called The “psoriasis” is the “psoriasis” in Western medicine, and the “psoriasis” in Western medicine is called “white H” in Chinese medicine. . Since the majority of patients are accustomed to call psoriasis “psoriasis”, and this name has unknowingly gained the “approval” of doctors, the current name for the disease – “psoriasis “The doctor and the patient basically consider it to be two names for the same disease. That is, commonly known as “psoriasis” = Western medicine “psoriasis. 2.What causes psoriasis? The exact pathogenesis of psoriasis has not yet been fully understood, but it is relatively unanimous that the disease is a multi-factorial (or multi-genetic) complex disease related to the environment, genetics and immunity. In addition, factors such as infection, humidity, cold, menstruation, pregnancy, childbirth, trauma, surgery, alcohol consumption, spicy food, drugs, emotional stress, overexertion and mental trauma. 3.What is the incidence of psoriasis? The incidence of psoriasis in the population is 1~3%. According to the epidemiological survey of psoriasis in 1984, the prevalence rate of men was 0.193%, which was higher than that of women at 0.139%. The standardized prevalence rate of 12 cities in the north is 0.20%, while that of 14 cities in the south is 0.14%. The standardized prevalence rate of 6 rural areas in the north is 0.18%, while that of 14 rural areas in the south is 0.065%. 4.What season is psoriasis good? Most of the patients have a good incidence in winter, and a few have the incidence in other seasons. Some patients have an obvious incidence season in the early stage, but there is no seasonality after repeated attacks. 5.Is psoriasis contagious? Although the common people call this disease psoriasis, but this “psoriasis” is different from the infectious ringworm, ringworm, ringworm, etc., psoriasis is not a fungal infection or infectious microorganisms caused, so there is no contagious. 6. Will psoriasis be passed on to the next generation? Psoriasis is hereditary, and the literature reports that 4.4%-90% of people have a family history of psoriasis, and 11%-20% are reported in China. Some scholars report that 11.9% of children suffer from the disease when both parents are normal; 18.4% of children suffer from the disease when one of the parents is sick; the incidence rate of children increases to 50-70% when both parents suffer from the disease. Compared to many diseases such as hypertension and diabetes, the heritability of psoriasis is not high, so there is no need to worry about psoriasis all day long because it has a certain degree of heritability. 7.What age are people prone to psoriasis? According to the available data, the earliest onset of psoriasis is 6 days after birth, and the latest onset is 91 years old. Therefore, psoriasis can occur at any age, but it is thought to be mainly in young adults, with an average age of 28 years for men and 24.6 years for women. 8.What are the types of psoriasis in Western medicine? Western medicine generally divides psoriasis into four types: the most common is the common type, which accounts for the majority of psoriasis, and the incidence rate accounts for more than 95% of psoriasis; other types include arthritic type, pustular type, and erythrodermic type. Among them, pustular psoriasis and erythrodermic psoriasis are mostly transformed from common psoriasis due to irregular treatment or even indiscriminate treatment, which should be paid great attention to by sufferers.