What is the basis for the diagnosis of psoriasis?

1) Prone areas. The scalp and limbs are extensive, and the elbows and knees are symmetrical.

2) Characteristics of the rash. Silvery-white scales, red bright film, and punctate hemorrhage are three characteristics.

3) Disease course. Anti-**, heavy in winter and light in summer.

4) Pathological features. When diagnosis is difficult, it is necessary to obtain a small piece of tissue and rely on a microscope to confirm the diagnosis.

There is currently no reliable blood test to confirm the diagnosis of psoriasis.

Psoriasis is a common ** disease, patients usually have skin lesions, and many people are very afraid of psoriasis. Many people have certain misconceptions about psoriasis, but psoriasis is not contagious. Psoriasis is a relatively common inflammatory disease with the characteristics of reverse action.

The patient will have some silvery-white scales locally. Psoriasis is not a microorganism that people are infected with, so even if you have close contact for a long time, it is not contagious because there is no source of infection and there is no way to transmit it.

Psoriasis is mainly based on the clinical manifestations: according to the clinical manifestations, the characteristics of skin lesions, the location of common occurrence, and seasonality can be diagnosed. A common symptom of this type of disease is a well-defined erythema of various shapes and sizes, surrounded by inflammatory redness, and in some cases, infiltrating and thickening.

Psoriasis begins as a papule of reddish pimples, about the size of a mung bean; After that, the papules gradually expand and fuse into brownish-red patches of different sizes and shapes, with a clear boundary 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.

There are many factors in the pathogenesis of psoriasis, the main ones are: affected by the patient's immune factors; Affected by viral factors such as Staphylococcus aureus and fungi; Affected by endocrine factors in patients; the patient's mental factors and the lifestyle habits around the patient; genetic factors; Environmental factors. Dampness, medication and stress are the main risk factors for psoriasis.

Categories: Medical & Health >> **Section.

Analysis: Psoriasis, commonly known as "psoriasis", is a common ** disease. Because its rash appears as a red macule, papules, or plaques, covered with multiple layers of silvery-white scales, this characteristic manifestation is the name of psoriasis**.

The ** of psoriasis is not fully understood and stubbornly refractory, and is listed as one of the top ten stubborn diseases by the World Health Organization. Many first-class disease experts have confirmed that psoriasis patients have genetic defects, coupled with some environmental factors (such as upper respiratory tract infection, mental trauma, trauma, etc.), which leads to abnormal manifestations of human immunity, and then causes psoriasis. However, its specific pathogenesis is not fully understood.

Psoriasis, despite being called psoriasis, is not ringworm. The definition of ringworm in modern medicine refers to the ** disease caused by superficial fungi, such as ringworm of the hands and feet, tinea corporis, etc. Psoriasis is not a disease caused by a superficial fungus, so it is not ringworm.

According to the epidemiological investigation of psoriasis and recent studies on genes, psoriasis is a polygenic genetically related disease. Therefore, experts suggest that for the sake of eugenics and fertility, in order to reduce the possibility of psoriasis, psoriasis patients should choose non-psoriasis patients or non-psoriasis families when choosing a spouse.

Psoriasis is typically characterized by a red raised rash covered with scales, and a transparent film will appear after the scales are removed.

The main manifestations of psoriasis are small red dots or maculopapular rash-like skin lesions in the early stage, which are itchy and itchy the more you scratch. Subsequently, the lesion enlarged, with multiple layers of silvery-white scales on the surface, and a light reddish translucent film was revealed by scraping the scales, and then the film was scraped off, and punctate hemorrhage was the characteristic of this type. If you are diagnosed, it is recommended that you go to a regular ** disease specialist.

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.

The symptoms of psoriasis can be manifested in **, nails, joints and the whole body, **The most common symptoms are red, small rashes or patches of erythema protruding on the surface, with thick silvery-white dandruff on the surface, and the dander can be scraped off layer by layer, which can appear in all parts of the body, especially the extensor side of the limbs, sacrococcygeal region and scalp are the most likely to occur.