Stasis dermatitis is a common peripheral vascular disease

which is characterized by recurrent erythema

papules and itching in the lower extremities

and is easy to diagnose and difficult to treat. The blood and vessel theory is the evidence-based academic viewpoint proposed by Professor Chen Shuchang

laureate of the title of National Prestigious TCM Doctor

in response to the characteristics of clinical diagnosis and treatment of peripheral vascular diseases

emphasizing the holistic nature of the human blood vessel system

with the veins as the core and the

wei

qi running outside the veins and

ying

qi inside the veins as the material basis. The etiology and pathogenesis of stasis dermatitis are: deficiency of vessel qi result ing in the loss of propulsion function; stasis in the vessels

blocking the qi flow; dampness in the veins

binding with stasis. The basic treatment method is to boost and reinforce healthy qi to clear the veins

invigorate blood and eliminate stasis to unblock the veins

and clear heat and drain dampness to dredge the veins. The treatment of stasis dermatitis based on the theory of blood-vessel differentiation from the perspective of qi deficiency

damp and stasis is explained in this study with clinical cases.