血管瘤是儿童常见的良性肿瘤和(或)先天性血管畸形,其发生率达3%～8%。部分血管瘤能自行消退,对患儿生长发育并无严重影响。但仍有许多不能消退的血管瘤,持续发展,引起出血、感染、溃疡、凝血障碍及心衰等并发症使儿童有较高的致残率和死亡率。我们于1976年至1990年创用脲素注射方 Hemangiomas are common benign tumors and / or congenital vascular malformations in children, the incidence rate of 3% to 8%. Some hemangiomas can subside on their own, and have no serious effect on their growth and development. However, there are still many non-subsided hemangiomas that continue to develop and cause complications such as bleeding, infection, ulcers, coagulopathy, and heart failure, resulting in higher morbidity and mortality in children. We used urea injection from 1976 to 1990