The reasons for the development of psoriasis to finally have not been studied. Medicine and patient experience confirm the impossibility of the transmission of disease by contact. Most commonly the disease appears during the period from 18 to 25 years, comitatus hyperemia on the body of the patient.
The causes of psoriasis:
- disorders of the endocrine system;
- the weakening of the immunity;
- genetic predisposition;
- causes of psoriasis may lie in the development of the viral infection;
- intestinal parasitic diseases;
- to the normal factors of the development of the disease include stressful situations and emotional shocks to the nervous system;
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- the lack of in the body trace elements and vitamins.
Symptoms of psoriasis on the stage
The disease can take place in 4 stages:- the initial (early);
- progression;
- inpatient;
- regression.
Symptoms of psoriasis the initial (first) stage. The primary symptoms of the disease at an early stage to proceed with the appearance of epidermalibus papular acne. Later 2-3 days for it to form a silver-white flakes, which are easily removed (on the photo). The initial симптоматика is classified as a development of the "point" of psoriasis.
Phase progression. This phase is characterized by active growth and the subsequent merger of papular acne. The primary symptoms of progression of the manifested characteristic шелушением, present in the central part of the element, without affecting the периферический whisk.
Secondary symptoms progression is characterized by the presence of the symptom Kebnera (isomorphic peripheral reactions). When травмировании papular area after 6-8 days (in accordance with the shape of the applied trauma) there is an element of psoriasis. In addition, the phenomenon of Kebnera occurred, if any, of psoriatic elements evoke strong scalpendi on the hands, in the area of the elbows, feet, face.
Continues stage it is accompanied by painful itching is not typical for the rest of the hunts. As usual, the progression may take 2-3 weeks and up to 3 (and more) months. During the stage of progression of the recommended preventive intake and therapy by external means.
Phase stationary. This phase comes to a shift of the advancing and does not have a certain time limit. It is able to smoothly перетечь in регрессию, the final form of the disease, but it is able to progress further. The characteristic symptoms of the solid phase of psoriasis include stopping the growth of plaque and the prevention of the emergence of new papular rash on the face, the hands, in the area of elbows, etc.
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In this case, there was a strengthening of flaking, in 50% of patients occurs psevdoatrofiya, классифицируемая, like a whisk Voronov. On the peripheral папулах arises angustus belts, bright skin, reminiscent of tegimentum paper from папиросы.
Phase of regression. This stage completes the process of inflammation with a significant reduction in flaking, aequandi the central part of the psoriatic elements with their further resolution (photo). psoriatic elements can form various shapes (rings, trapeze, arches, etc.) and are classified as "geographic psoriasis".
There is another option regressus stage of the disease, when the permit begins with the peripheral part of the papules, is not образовывая scar tissue, and in the absence of atrophic processes. In that place of the body where they have been observed papules may cause hyperpigmentation. It is necessary to take into account that this division of the disease variants is conditioned. The most commonly regressus phase is defined by the method of observation симптоматикой of the patient.
Symptoms of psoriasis depending on its shape
Currently, there are many psoriatic forms, which differ from each other in external characters, and the severity of the symptomatology.
Most often occur the following forms of psoriasis:
- seborrheic psoriasis scalp;
- vulgar;
- longus;
- psoriatic rheumatoid arthritis
- exudative
- каплевидный;
- TABULA
- of the nail;
- pustular;
- erythroderma.
The most common forms of the disease are TABULA and vulgar psoriasis. It is necessary to take into account, that in any disease observed redness and itching of the skin.
TABULA PSORIASIS. This type of disease develops by leaps and bounds, sometimes in the nervous system and continues with the acute симптоматикой. The disease begins with the arrival of a small amount of чешуйчатых papules, which are clearly limited and slightly protrude above the surface (on the photo). Further, the papules may cluster together, forming a plaque.
<4_img></4_img>This type of psoriasis is able to hit large areas of the skin, causing дискомфортное the condition of the patient. When травмировании plaques may develop fungal and bacterial infections. Refine the diagnosis of the disease is performed by confirmation of "psoriatic triad".
VULGAR FORM OF PSORIASIS. This type of psoriasis is accompanied by active papular and genus TABULA, шелушением the hair of the head, lower back, hands, elbows, stopping. The rash is covered with silvery-white рыхлыми statera doloso and has a bright light red (pink) borders (on the photo). When diagnosing the skin sticks positive symptoms of "psoriatic triad".
Rashes appear in the local places (elbows, hairy part and so on) after 1-2 weeks. Such a rash is called a "watchdog" or "in service". For certain categories of patients papules are now converts to the erythroderma. Very rarely vulgar form manifests itself on the face and in the genital area.
SEBORRHEIC PSORIASIS. This kind of disease локализуется on the scalp and is characterized by a strong шелушением area of the head, ears and forehead. This симптоматика is called "psoriatic crown" (on the photo). Further, the scabs crack, and the diseased area of the skin (especially in a child) strongly rursus and wait to he brings the huge discomfort of the patient. Typically, the disease has a seasonal development, sometimes maybe her emergence as a result of increased neural возбудимостью of the patient. When violations of the immune system is the possible occurrence of fungal infections, which greatly exacerbates the disease.
Diagnosis of the disease is hampered by the fact that seborrheic psoriasis is similar to the seborrheic dermatitis on your симптоматике, however, in seborrheic psoriasis, the missing hair loss. When palpation (ощупывании) seborrheic psoriasis defines the clear boundaries of the plaques, and seborrheic dermatitis doesn't have these boundaries.
ЭКССУДАТИВНАЯ FORM. This type of disease develops in patients with disorders of the endocrine system (diabetes, obesity). Exudative psoriasis often can be observed in older people, it is possible to negative симптоматика in a child.
The main symptom of this form of psoriasis is the lack of white flakes of plaque on the папулах. Instead, the rash may cover the yellow-brown crustae, that is caused by the excessive choice of exudate (inflammatory liquid). He layer of the oatmeal acne. When removing this crust exposed erosiva wet surface. Typical papules in psoriasis are lacking, and appear edematous pain parts of the body boundaries are blurred.
Most often the rashes are located in the skin folds (genital organs, the area of the armpits, under the breasts), flexura surface on the hands and feet. If a patient celebrates варикозная disease, symptoms экссудативного psoriasis of the lower extremities are getting worse.
NAIL PSORIASIS. This form of psoriasis is characterized by the defeat of the clavus of the plate in the form of point depressions, the so-called "flag thimble". The nail becomes dull, on the edge of the left affected nail will appear воспаленная каемка. In this celebrated friability okolonogtevogo roller and the breakdown of the structure of the nail. It should be noted that a similar симптоматика occurred in the development of onychomycosis, and therefore it is necessary to perform a thorough diagnosis.