皮下的出血斑称为淤斑或称紫癜，淤斑比淤点大。出现于凝血系统功能障碍。
The blotchy areas of hemorrhage in the skin are called ecchymoses (singular ecchymosis), or also as areas of purpura. Ecchymoses are larger than petechiae. They can appear with coagulation disorders.
