Early symptoms of malignant transformation of black nevus?

summary

Nevus is very common, but improper treatment of nevus can lead to malignant transformation and become malignant tumor, accompanied by many symptoms. So what are the symptoms of early malignant transformation of nevus? We may not know. Now I will introduce this problem to you, hoping to arouse your attention.

Early symptoms of malignant transformation of black nevus?

Shape changes: benign nevus is generally round, with clear boundaries and regular edges between the surrounding normal skin. When malignant transformation occurs, the edge may appear irregular changes, may be serrated or other shapes, pigment often diffuse and hidden into the surrounding normal skin. For example, the edge of the original round nevus began to become irregular, the shape was no longer symmetrical, and the boundary with the surrounding skin was not clear;

Size change: the diameter of benign pigmented nevus is generally less than 6 mm. If it is found that the original pigmented nevus suddenly expands or continues to expand, it should be fully vigilant. Skin changes: the surface of benign pigmented nevus is smooth and smooth, without other pathological phenomena, if there are desquamation, erosion, exudation, scab, bleeding and other conditions;

Color change: benign pigmented nevus with uniform color, dark brown or black, no other mottled. Once malignant transformation occurs, there will be a variety of colors, in addition to dark brown and black, but also red, pink, white, blue, etc. these colors first appear at the edge of the nevus, and gradually spread to the surrounding normal skin.

matters needing attention

Moles are common to all. According to statistics, after careful physical examination, there are as many as 50 normal individuals, with an average of 15-20. As a result of common, often careless, random disposal, a lot of lessons. When the street spot mole; Some people don't know the depth, take the corrosives and point the moles at will; If someone grabs and digs at will, the result will be scar, deformity and death!