The diagnosis of the disease should always be performed by a doctor.
The onset is usually gradual, with steps for improvement and other rapidly worsening. The lesions can cover each area of the body. In the most characteristic are as erythematous plaques or spots (red) well defined and covered with scales of silver white color of varying thickness.
They are generally in a symmetrical and, in relation to the location and form, determine many variations of the disease:
Psoriasis vulgaris – It ‘s the classic form, characterized by predilection for certain locations: the extensor surfaces of limbs, particularly elbows and knees, scalp, the loin-sacral region, the palms of the hands, feet plant, while the face is rarely affected. Usually occurs in the second or third decade of life.
Psoriasis eruptive or guttata – Comparsa eruption on the entire body surface, many chiazzette lenticular (guttata = shaped drop), which also face peeling, with savings on the face and scalp.
It affects mainly young people after streptococcal infection, usually tonsils, causing general malaise and pain in small joints.
Pustular psoriasis – It ‘s a rare form, the most severe, characterized by the appearance of numerous isolated pustules head of a pin on spotting erythematous. This form is unknown two varieties, mainly located in a palm-foot home (Barber) and widespread , more serious, which seriously undermines the overall condition of the patient with high fever, chills, sensations of burning, with imbalances idroelettrolitici hypoalbuminaemia.
Inverse psoriasis – Relatively frequently, has a location "reverse" compared to the classic, affecting the inguinal folds, axilliary, axilliary cables and elbows. The skin is intensely red, smooth, clear limitations, while the number of peeling is minimal or absent.
Erythroderma psoriasis – It ‘s the most severe; manifested with fever and involvement of the entire skin, which looks very flushed to the intense vascularization. The general state of the subject can be seriously compromised because of the temperature, dehydration and electrolyte imbalance, which is often encounter.
Sometimes psoriasis can affect the joints, especially those of the hands, feet, knees and femur. The onset is often subacute; may follow, precede or be simultaneous demonstrations skin. Psoriasis Arthropathy said, can be associated with onicopatia (nail disorder) and lead to severe joint deformities.