沥青、煤焦油所致中毒性皮肤黑变病,是常见的职业性皮肤病之一,由于其对人皮肤的光感作用和刺激作用,长期接触引起皮肤干燥粗糙,日晒后加重,尤其在面颈部、手和前臂等暴露部位有棕褐色色素沉着,并可波及全身皮肤,出现不同程度的全身症状。在防治本病实践中,根据我们的体会,有以下几种 Asphalt, coal tar black degeneration caused by toxic skin, is one of the common occupational skin diseases, due to its light perception and stimulation of human skin, long-term exposure causes the skin dry and rough, heavier after sun exposure, especially in Facial and neck, hands and forearms and other exposed parts have tan pigmentation and can affect the whole body skin, varying degrees of systemic symptoms. In the prevention and treatment of this disease in practice, according to our experience, there are the following