Symptoms and causes of fungal lichens
The type of lichen caused by fungal pathogenic agents is called fungal lichen. Among several types of the disease, those that are provoked by the active action of fungi, as well as by viral particles, are isolated. It is believed that some of the species are caused by an allergic reaction, as well as autoimmune disorders. In this article we will talk about mycotic dermatoses, their causes and symptoms..
- 1Features of the disease
- 2Peregrine lichen
- 3Factors of occurrence
Features of the disease.
In most cases, lichen pathogens are fungal microorganisms. They enter the human body and, at a convenient opportunity, begin to multiply actively, causing the development of an inflammatory process. Some of the fungus species occupy the skin of almost any person. However, their concentration is so insignificant that a person does not even suspect such a neighborhood. A signal about their multiplication may be a certain external or internal stimulus.
Fungal microorganisms, which provoke the development of lichen, can be divided into several main groups:
- Zoo anthropophilic. They colonize the skin of animals, which become a source of infection for humans. Quite often, children and adults are able to pick up a fungus from a sick homeless person or a pet. To do this, just pat or play with it to develop microsporia.
- Anthropophilic. This fungus takes root only on the human skin, so the source of infection for healthy people is a sick person. In such cases, trichophytosis develops.
- Geochemical. The main habitat of this species of fungus is the soil, so the main way transmission of the pathogen is its entry into the human body through soil (food, water etc.).
In accordance with the above-mentioned groups of fungal pathogens, several species of lichen are distinguished, belonging to mycosis dermatoses:
- pityriasis (colored, multicolored) deprive;
The last two types of pathology are combined in medicine under the general name of ringworm.
This kind of pathology is caused by the action of yeast-like fungi. There are three main forms: oval, mycelial and rounded. The oval form is not pathogenic, and it is present in the microflora of the skin of a healthy person.
Mycelial form is referred to as conditionally pathogenic agents, which, under adverse effects, is capable of passing into a round (pathogenic form). It is it that causes the growth of the pseudomycelia of the fungus and provokes the development of the pityriasis.
Factors of occurrence.
The peak of the incidence of color deprivation is in summer time, so it is also called a summer or beach disease.
In accordance with this, the following factors are considered to be the main factors of its occurrence:
- high humidity and air temperature;
- increased sweating;
- visiting solariums;
- improper skin care, especially in the summer;
- long stay of a person in the open sun.
Also, some internal factors matter:
- hereditary predisposition;
- decreased immunity;
- presence of chronic diseases;
- the transferred pathologies, and also surgical interventions;
- stress and nerve strains.
In the presence of one or more of the above factors, there is a risk of infection by discouraging pityriasis by contact.
The disease begins with the appearance of multiple whitish spots on various parts of the body, as well as the scalp. Their edges are rather blurred, but clearly pronounced. Gradually, the elements of the rash change their color and increase in size. The color of the spots can vary from white to brown and even black. It is noteworthy that on the sunburnt skin they lighten (do not sunbathe), and on the light skin (unburned) they darken.
If untimely treatment of the disease, the elements of the rash grow actively and merge, forming one large spot.
Often, the eruptions are located on the skin of a person for a very long time. They are not so easy to withdraw, especially if a person suffers from excessive sweating and does not follow the rules of personal hygiene (especially in the summer).
It is also important to note that, in contrast to other varieties of lichen, in this case there is no inflammatory process. The person is not bothered by itching and flaking.
The disease is highly contagious, so if suspicious symptoms are found, consult a specialist immediately. Pathology often spreads through contacts and general living conditions with a sick person or animal.
The causative agent of the disease can also be transmitted through microcracks and damage to the skin. Reduced immunity is a provoking factor for the development of pathology.
The source of infection is a sick animal or an infected person. Often, it is enough just to touch the skin or hair of the patient, so that infection occurs.
Infection with ringworm is often affected by children, so the disease can actively spread in kindergartens, schools and other groups.
The symptomatology of the disease depends on the localization of the elements of the rash, as well as on the general condition of the patient.
Depending on this, dermatologists distinguish several types of pathology:
- Ringworm on the head. The focus of inflammation is a single spot or multiple rashes of red, gradually becoming covered with yellow scales. The defeat of the hair leads to their breakdown and the formation of prolysin. The disease is dangerous because in untimely treatment it can go on in a chronic form in women.
- Ringworm smooth skin. In addition to the scalp, ringworm can affect almost any area of smooth skin. The main places of localization of the rash are the face and neck area. The affected area is covered with specific spots of pink or red, bordered with a unique roller. Inside it formed gray scales that are contagious. This kind of pathology is also able to flow into a chronic form.
- Deep lichen. The most dangerous type of disease in humans. Infection occurs from sick animals. It is characterized by the formation of inflamed plaques on the scalp, as well as the mustache and beard in men. Inflamed hair follicles lead to the formation of purulent contents. The person during this period can be disturbed by the raised body temperature, delicacy, and also increase in lymphonoduses.
- Chronic form of lichen. It is observed in women who have been ill with a common form of pathology in childhood. On the skin of the body, as well as the head (occiput, temples), scaly spots are formed, called "black spots". To them can be added itching and severe peeling. This form of pathology is not contagious.
Fungal lichen is a serious dermatological pathology that can lead to serious health problems.
In no case should you delay visiting a dermatologist in case of a suspicious rash..