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，青紫肿痛或加重肌肉萎 Thromboangiitis obliterans, its cause is affected by the wind, cold, wet stimulation caused by poor collateral channels, qi and blood silt resistance, leading to extremity local tissue ischemia. Hypoxia, and then acromegaly and even shedding of the disease. Therefore, the motherland medicine will call it “debaucjed.” Prolapse of the vasculitis is divided into three phases: a cold limbs or burning, toe swelling; typical symptoms of two toe dry, bruising or aggravating muscle wilt