Skin diseases are a large group of pathologies. They are caused by a variety of factors and have many reasons. Let’s look at the most common of them.
1. Allergic reaction. It is a changed, distorted response of the immune system of a particular person who had contact with one or another particular substance. That is an object, which causes this reaction, in other words, to which the patient is sensitized.
The cause of allergic dermatitis may be any substance or object that comes in contact with the skin. Specific inflammatory changes in the skin with allergic dermatitis can be very different – from simple redness (erythema), edema, nodular elements to bubbles and large erosions.
2. Viral Dermatoses. Skin diseases caused by viruses make a large group of varied skin changes, most of which are quite harmless formations that do not cause any serious complaints in patients, with the exception of cosmetic discomfort when they are localized in open areas of the body. Usually, such changes are different types of warts and papillas, which have age dependence.
3. Vulgar acne. Fat seborrhea is often a background of acne. Since they most often occur during puberty, they are called “juvenile acne”. In this case, the outflow of sebaceous glands is disturbed and even may be blocked. At the same time on the surface of the skin, there are black dots – comedones.
4. Pyoderma, or pustular skin diseases, are among the most common skin diseases. Piodermia can be as an independent disease, such as boil, or complications of other skin diseases: scabies or eczema.
Pathogens infectious diseases of the skin are piococcas – microorganisms, which are in large numbers in the environment of human existence and on his skin.
5. Furuncle. The causative agent of boils – staphylococcus, which causes purulent inflammation of the hair follicle and sebaceous gland, where it can penetrate in the case of a decrease in the protective properties of the human body.
Several boils, located in the form of a single conglomerate and forming a general purulent cavity, are called carbuncle.
6. Eczema is a chronic, recurrent skin disease with complex multifactorial pathogenesis. The clinical picture of this disease is characterized by the pronounced inflammatory nature of skin lesions, the appearance of wet areas and itching.
7. The systemic lupus erythematosus (SLE). SLE is pathology that characterized by a long, aggressive course, various clinical manifestations. The disease begins, as a rule, in young age or adulthood (20-40 years). Blondes get sick more often than brunettes. The causes of the disease are very complex and varied. Provocative factors may be various drugs (antibiotics, sulfanilamides, serums, etc.), infections (streptococcal, viral), as well as a fairly large number of external stimuli (ultraviolet and infrared rays, radiation, cooling). People whose profession is associated with prolonged exposure to the open air, in the sun, frost, and also exposed to sharp fluctuations of the air temperature (fishermen, sailors, drivers, builders, farmers) are more likely to suffer from illness.