血栓闭塞性脉管炎，其病因是受风、寒、湿刺激造成经络不畅，气血淤阻，导致四肢局部组织缺血、缺氧，进而肢端溃烂乃至脱落的疾病。因此，祖国医学将其称之为“脱骨疽”。临症将脉管炎分为三期；一期肢体发凉或灼热，趾端肿痛；二期典型症状为趾端干枯，青紫肿病或加重肌肉萎 Thromboangiitis obliterans, the etiology is caused by the wind, cold and wet stimulation caused by poor collateral channels, qi and blood stasis, resulting in limb ischemia, hypoxia, and then extremities ulceration and even shedding disease. Therefore, the motherland medicine will call it “debaucjed.” Pro-disease will be divided into three stages of vasculitis; a cold limbs or burning, toe swelling; typical symptoms of the second phase is dry toes, bruising, or aggravating muscle wilt