The characteristic species-specific signs of psoriasis play a decisive role in diagnosis and treatment.
The most common type of chronic dermatosis, according to statistics, is psoriasis. This is a complex and multifaceted disease of polyetiological origin. For a variety of reasons, a large number of different types have been identified that have their own characteristic signs of psoriasis. The need to distinguish between types by symptoms arose due to the ambiguous reaction of the skin to medications and other methods of exposure.
Until recently, the disease was considered not dangerous to health and life, until cases of death were recorded due to incorrect identification of the cause, type, and treatment. In addition, a person can be affected simultaneously by several forms of the disease, the symptoms of which must be taken into account when prescribing treatment.
The disease affects people regardless of gender and age category. The first symptoms of psoriasis can appear in both infants and adults without any apparent reason. Depending on the type, not only the onset, but also the development of the disease differs; it can be rapid or slow, with a gradual increase in symptoms.
Timely notice of the initial symptoms and signs of psoriasis is the key to the effectiveness of treatment, this will allow:
- Do not allow the disease to take over large areas of the skin;
- Quickly eliminate external symptoms of the disease and prevent damage to internal organs;
- Take timely measures to prevent relapse and prolong the quiet periods of the disease.
The terms "symptoms" and "signs, " although similar in meaning, have significant differences. Symptoms are a person's subjective feelings that can be confirmed or refuted by examination data.
Signs are objective examination and examination data with which the doctor makes a diagnosis.
For example, pain is purely a symptom, while skin rashes are a sign.
This is important to remember, since by feeling only the symptoms it is impossible to make a correct diagnosis, and only a specialist can determine the signs of psoriasis, its specific type and form.
General signs
Regardless of whether the disease appeared suddenly and began to develop rapidly or the initial manifestations were gradual, clinicians consider the beginning of the formation of papules in various areas of the skin - small scaly nodules of a dark pink color, dense to the touch and protruding above the surface.
The first thing a patient may notice is the formation of a rash in those places that are more exposed to friction than others, and the skin on them is the driest, this is:
- On the hands, areas in the palms or elbows;
- Under the knees;
- In the inguinal folds;
- On the sides of the lower back;
- On the shin;
- On the scalp under the hair.
The location of the lesion directly depends on the form of the disease. Vulgar psoriasis prefers to appear on the elbows, and the teardrop type begins to spread from the lower back, areas of skin under the chest and shoulder blades.
The first rashes on the skin are usually barely noticeable, do not form clusters, and do not cause any discomfort. But if you do not consult a specialist at this stage and ignore the onset of the disease, damage to the nails on the hands and feet will gradually begin, then the disease will spread to the mucous membranes, and then spread to the joints.
The appearance of the first signs of psoriasis may differ depending on gender or age. In infants, the psoriatic rash most often begins with the inguinal folds, and resembles the signs of miliaria. In adults, the onset can be of two types:
- Round rashes of varying sizes, deep pink or red in color, with many whitish scales visible. Gradually, although each patient has his own way, the areas of the rash thicken and noticeably rise above the surface of the skin. The rashes form psoriatic plaques, similar to drops from a paraffin candle.
- Small, dense papules form small clusters on the elbows, palms, and sometimes along the knee joints and ankles. These signs are so insignificant that a person simply does not pay attention to them, confusing them with ordinary irritation. It is important to listen to yourself to see if characteristic symptoms of psoriasis have appeared, such as itching and pain to the touch. If you miss the initial symptoms of psoriasis, then single papules quickly turn into plaques, which are very difficult to get rid of.
You can differentiate psoriasis from other skin diseases using a triad of characteristic symptoms, these are:
- "Stearic stain effect". When scraping the surface of the plaque, transparent, small scales easily peel off.
- "Terminal film effect". If you remove the exfoliated scales, in their place there will be a thin shiny surface of the skin, bright in color.
- "Bloody Dew Effect". At the site of scraping, microscopic droplets of blood appear after a short period of time.
The classification of specific forms of psoriasis is of great importance in determining the disease. An unambiguous system has not yet been developed; experts distinguish main groups according to characteristic symptoms and signs.
Classification
The main division of the disease is into two large groups according to the nature of the skin rashes, these are:
- Non-pustular forms, which are characterized by distribution over the entire surface of the skin, including such types as:
- Simple (vulgar) or ordinary psoriasis, characterized by a stable chronic course with the development of plaques. The vulgar type of the disease is the most common, it occurs in 85% of cases.
- Psoriatic erythroderma. A dangerous type, always occurring in a severe form, affecting the thermoregulatory and barrier abilities of the skin. Quite often, erythrodermic psoriasis ends in pyoderma or sepsis.
- Pustular forms, which are characterized by the formation not of papules, but of pustules - blisters of inflamed skin filled with serological fluid. These forms of the disease in their course can be generalized (distributed over the entire surface of the skin) or localized, mainly in the area of the palms and soles.
- Generalized psoriasis type Tsumbusha;
- Type of ring erythema;
- Barber's palmoplantar type (chronic pustulosis of the extremities);
- Anular type of pustular psoriasis;
- Persistent acrodermatitis (psoriasis of the soles and palms);
- Psoriatic herpetiform impetigo.
This classification system has not yet included such types of diseases as:
- Seborrheic;
- Exudative;
- Drug-dependent form;
- Inverse psoriasis of the surfaces of folds and folds of the skin.
Characteristic signs of different types of psoriasis
The general symptoms of psoriasis fully characterize only the vulgar form of the disease, which is the most common of all known forms of the disease. A characteristic feature of plaque psoriasis is the places where the first rashes appear, these are:
- Bends on arms and legs;
- The border between the forehead and the scalp;
- Back of the hands.
teardrop type
A distinctive feature of this type of disease is the formation of single papules, shaped like a drop. The first signs of guttate psoriasis appear on the thighs and then spread over the entire surface of the skin. In the vast majority of cases, guttate psoriasis develops against the background of infectious diseases caused by streptococci.
Atypical appearance
This form is characterized by the formation of the first manifestations in places atypical for psoriasis, these are:
- folds of skin,
- Lateral surfaces of the body
- Armpits.
Pustular (exudative) appearance
The onset of the disease is characterized by the appearance on the surface of the palms, feet or legs of small blisters (papules) filled with serous fluid of a non-infectious nature. The skin around the papules is always inflamed, and the blisters themselves are very unstable and are open gates for infection.
In most cases, exudative psoriasis develops in patients suffering from endocrine diseases, metabolic disorders and obesity.
Psoriasis of fold surfaces
Distinctive features of this form are the appearance of the manifestations on the skin. The rash appears in the form of large red spots that are not covered with scales and do not protrude above the surface. This species covers areas with intense sweat glands, such as:
- Bend joints on the arms and under the knees;
- Armpits and inguinal folds;
- External genitalia;
- The area of skin under the breasts in women.
Quite often this form is complicated by the addition of a fungal or streptococcal infection.
Psoriatic arthritis
One of the most insidious forms of the disease, which is characterized by a long latent course. The patient notices the first symptoms of psoriasis when the damage to the joints has become total. Signs of this type of psoriasis are expressed in pain and swelling of the joints, and their subsequent deformation.
Seborrheic appearance
The localization of rashes of this type is initially concentrated on the face, the first signs appear in the area of the nasolabial triangle, behind the ears, along the edge of hair growth. Further distribution goes along the shoulder blades on the back and along the chest. The rashes are covered with yellowish scales, and the boundaries with healthy skin are blurred.
Onychodystrophy, nail psoriasis
This type is almost untreatable. The pathology exclusively affects the nail plates, which change their color to dark yellow or gray. The structure of the nails becomes thinner, and the cuticle area becomes inflamed for no apparent reason.
Conclusion
It is important to always remember that psoriasis is not only a skin disease, but also a very serious disorder of the internal systems of the body. Under no circumstances should you self-medicate or turn to healers. The selection of an effective treatment regimen can only be performed by an experienced specialist after a careful examination.