早期黑色素瘤可以通过痣的不对称性、边界不规则性,颜色以及大小来鉴别,其他的恶性改变还有:局部出现瘙痒、出血、溃疡或先天良性痣的改变。每个人都会有痣,那么,什么样的痣可以不管,什么样的痣应该留心,要经常观察,有几条要把握住,比如痣出现了不对称、边缘不规则,痣周围像地图样伸展,还有是颜色出现杂色,比如在痣上面出现了褐色、黑色、蓝色的小点, Early melanomas can be identified by their asymmetry, borderline irregularities, color, and size. Other malignant changes include localized itching, bleeding, ulceration, or congenital benign delirium. Everyone will have jealousy, then, what kind of jealousy can be ignored, what kind of jealousy should be taken care of, should always observe, there are a few to be grasped, for example, jealousy appears asymmetry, the edge is irregular, the jealousy is like a map-like stretch , And there is a variegated color, such as the brown, black and blue dots that appear on the pimple.