Lysis of the hematoma with various enzymes, such as urokinase or tissue plasminogen activator (TPA), and drainage of liquefied clot has become an alternative.

• 因而，应用不同的酶如尿激酶或组织纤维蛋白溶酶原激活剂来溶解血肿和引流液化的血凝块，成为可供选择的治疗方法。