有的人到了冬天,皮肤常常发痒,先是从大腿,然后渐渐发展到胸、背和四肢,特别是夜晚痒得更厉害。这种现象是怎样引起的呢?主要是因为天冷,雨水少,空气干燥,皮肤容易破裂和脱屑,因而引起发痒。还有的人因为脂腺和汗腺分泌机能较差所 Some people in the winter, the skin often itchy, first from the thigh, and then gradually developed to the chest, back and limbs, especially the night itchy even worse. This phenomenon is caused by it? Mainly because of cold weather, less rain, air-dry skin easily rupture and scaling, which caused itching. Still others have poor secretion of fat glands and sweat glands