Nevus Blue

Blue nevus - brief description

Blue nevus (or blue nevus) is one of the types of melanocytic nevi (pigment spots) that appear on the skin as a result of the formation of atypical pigment cells. These nevi can be congenital, appear in adulthood or throughout life. A blue nevus is characterized by a light or blue tint and can be either small in size (about the size of a pinhead) or large in size up to several centimeters.

Despite the fact that a blue nevus is considered a safe neoplasm, it can become a symptom of various diseases, such as vitiligo and leukoderma. Therefore, it is recommended to undergo regular examinations by a dermatologist to determine the cause and diagnosis.

Classification

Depending on the shape

Based on the shape of the blue nevus, the following varieties are distinguished:

**Looking (“overhanging”)** This nevus is characterized by a blue-blue hue, which darkens when you raise your hand up. Many patients mistakenly believe that this is a type of Broca's melanosis (vitiligo) or melanoma. However, such negative changes in the skin are associated with obesity or ultraviolet burns. All other signs correspond to a blue nevus.

**Yaws nevus** It is characterized by its large size (several centimeters in diameter), characteristic color with a pronounced bluish tint. The patient has signs of fever (rise in body temperature), redness of the skin in the area of ​​the nevus, blue in color, and, less commonly, pathological rashes on the body may be observed. It is recommended to monitor the disease with the attending physician.

A blue nevus is a benign formation on the skin that can occur in both children and adults. This is a fairly common disease that occurs in 1-2% of people. Moreover, regardless of skin color, if blue nevi occur, it is recommended to consult a dermatologist. Unfortunately, this information does not cause much panic or fear in society, and doctors often ignore this disease, which explains the low attendance by specialists. It is also worth noting that in English-speaking countries the disease is called melanocytic naevus - melanin nevus.

A blue nevus can have different shapes and sizes, and is sometimes covered with hair - such a nevus is called a blue hairy nevus, which is formed from a mixture of chromophores (pigment cells) responsible for the color of hair and skin. This nevus grows slowly and the risk of malignancy is minimal. However, it is blue nevi that most often have the ability to grow quickly and change shape.

The cause of the pathology is the presence of mutations in the genes responsible for melanogenesis. It is possible for the body to acquire uncontrolled production of melanin. In general, the exact reason for the formation of a nevus and its changes is still unclear. There are currently no necessary research methods to clarify the situation.

If you experience nevus formations, you should visit a dermatologist. Even if the nevus is several years old and its shape does not change, it is still recommended