维生素B_2缺乏病在我国甚为普遍,作者过去嘗有文论及,在特殊情况之下,食物不足,或因储藏及烹调方法的不适当而损失一部份维生素时,患者尤多。1949年解放军过江以後,不久,即发现很多战士患陰囊皮肤症状(第一图),影响工作効率。经检查後,知患者大多数也同时患了一般维生素B_2缺乏的症状,如口唇乾燥,发生裂缝,口角湿白(第二图)裂开以至出血,舌头烧痛呈 Vitamin B 2 deficiency is very common in our country. In the past, the authors had literary criticism. In exceptional circumstances, patients were particularly prevalent when they suffered from insufficient food or lost some vitamins due to inappropriate storage and cooking methods. Shortly after the people’s Liberation Army crossed the river in 1949, many soldiers were found to have symptoms of scrotal skin (Figure 1), affecting working efficiency. After examination, most patients also suffer from the general symptoms of vitamin B_2 deficiency, such as dry lips, cracks, mouth wet (Figure 2) rupture and bleeding, tongue pain was