What is the concept and classification of psoriasis?

Psoriasis is a common, easy-to-treat, and refractory chronic inflammatory disease. Scaly erythema, papules, and plaques (vulgar type), or a large number of sterile pustules (pustular), or arthritis (arthropathy), or diffuse flushing and scaling (erythroderma). Among them, psoriasis vulgaris accounts for more than 99% and can occur in all races, men and women and all ages.

Psoriasis is generally divided into two categories: common and non-usual, and non-unusual types include pustular, arthropathic, and erythrodermic types.

The incidence of psoriasis is as follows.

1) Morbidity. 3% of the natural population, the "home of psoriasis" on the island of Farose, Denmark; 2,500,500,000 in the United States; about 100,000 in Japan; China, rural, warm zone.

2) Age of onset. It can be used for all ages, with puberty peaking, with an average of 28 years for males and 28 years for females.

3) Gender differences. Females (3 2 or 2 1), but females present at an earlier rate, with women presenting in childhood and < 19 years of age accounting for all cases in females and males only.

4) Race. Caucasians are the most common, yellow people are second, and blacks are rare.

5) Season. It is more common in winter. It is associated with a dry climate, less sunlight exposure, and less bathing.

Psoriasis disease is slow and easy to reverse, and it is more likely to occur on the scalp and extensor sides of the limbs; Psoriasis begins with pale red papules about the size of mung beans; With the development of papules, they gradually expand and fuse into brown-red patches of different sizes and shapes, with clear boundaries with the ** surface, and white scales will appear on the surface or cover multiple layers of dry gray-white, and after scraping off the scales, punctate hemorrhage will appear.

Hello, psoriasis is a common disease, easy to **inflammatory** disease, the first sight of the skin lesions are mostly punctate or flaky, the size of soybeans, the surface is covered with silver-white scales, and there are layers of white chips falling off after scratching. It can be seen that the film is red and shiny, and the skin lesions gradually increase in size during the development process, and can form a money-like shape.

Psoriasis is a common inflammatory chronic disease, the course of this disease is relatively long, the condition is also easy to reverse, and the clinical manifestations and symptoms are generally erythema and scales. Psoriasis is generally divided into four types: vulgaris, erythroderma, pustular, and articular.

There are many kinds of psoriasis, patients with psoriasis should not be in a hurry, it is recommended to go to the hospital to receive **, generally, there is vulgar psoriasis: the rash generally occurs on the scalp, trunk, extendor side of the limbs, it is a red papule on the **, gradually expanding and fusing into patches or plaques, there are thicker silvery-white phosphorus chips on the surface, irregular shape, some have a map or island-like appearance, some have smaller, more, starry appearance, a layer of scales layer falls off, gently scrape off the dander can see a thin layer of red film.

Psoriasis is a more common disease in our lives, and psoriasis is also a chronic inflammatory disease, which is generally more common among young people, not only in addition to young people, people of other ages will also have psoriasis.

1.Heredity is what causes psoriasis. Clinically, there is often a family history and a genetic predisposition.

30% to 50% of people with family history have been reported abroad, and some people even emphasize that it is up to 100%. About 10% to 20% of those with a family history have been reported in China, and some people believe that it is autosomal dominant inheritance with incomplete penetrance, and some people believe that it is autosomal recessive inheritance or sex-linked inheritance. The incidence of psoriasis in the descendants of one parent is three times higher than that of the healthy child, and the incidence is higher in the descendants of both parents who have psoriasis.

2.Infect. Clinical practice has shown that the onset of psoriasis is associated with upper respiratory tract infections and tonsillitis.

Six percent of patients with psoriasis have a history of pharyngeal infection. We have found that psoriasis in many children is closely related to tonsillitis. For example, a mother and her three children had acute tonsillitis at the same time, and after the disease was controlled, three of them developed psoriasis.

In this case, antibiotics** are effective. The rash may improve or resolve markedly after tonsil removal, suggesting that infection is an important factor in the onset of psoriasis.

3.Metabolic disorders. Studies of psoriasis blood chemistry, histochemistry and pathophysiology have failed to yield beneficial results. In the past, it was thought that the onset of psoriasis was related to disorders of lipid metabolism. This is also a factor that causes psoriasis.

The above is the common ** of psoriasis, although the high incidence of psoriasis is some young people, but for the prevention of psoriasis in addition to young people, each of us should pay enough attention, once psoriasis "sticked" for a long period of time may be "entangled" with you, rather than looking around for a doctor, it is better to do the corresponding prevention work as soon as possible.