皮肤上经常出现小疱、脓疱、疔痈或者皮肤的某些部位反复发红、发痒,特别是出现癣症等感染,这是患糖尿病的报警信号。 头发枯黄、无光泽,预示缺铁和缺乏维生素B。头发不正常脱落,提示体内可能缺锌。头发脆弱易断,提示甲状腺可能有毛病。男性前额发际脱发者,提示有患肾病的可能,女性全发散发性脱落,提示有患肾炎的可能。颅顶部脱发可能为结肠炎、 Skin often appear small blisters, pustules, emu or some parts of the skin redness, itching, especially the emergence of ringworm infections, which is a warning sign of diabetes. Brown hair, matte, indicating iron deficiency and lack of vitamin B. Hair is not normal off, suggesting that the body may be zinc deficiency. Fragile and fragile hair, suggesting that the thyroid may be defective. Male forehead hair loss, suggesting that the possibility of suffering from kidney disease, women all hair loss, suggesting the possibility of suffering from nephritis. Top of the skull hair loss may be colitis,