dermorrhagia

例句：

1. 1.The patient had a dermorrhagia on his left leg that required immediate medical attention.
   这名患者左腿上有一个皮肤溃疡，需要立即医疗关注。
2. 2. The old man's arm was badly affected by dermorrhagia, which made it difficult for him to move.
   老人的手臂严重受到坏疽的影响，这使得他很难移动。
3. 3. The treatment of dermorrhagia often requires the use of antibiotics and antifungal agents.
   治疗坏疽通常需要使用抗生素和抗真菌药物。