What disease is “Qi stagnation and blood stasis”?

What is “Qi stagnation and blood stasis”? “Qi stagnation and blood stasis” is not a specific disease, but rather a pathological state reflecting impaired circulation of Qi and blood in the body. Clinically, this condition commonly manifests as pain—according to Traditional Chinese Medicine (TCM) theory, “where there is pain, there is obstruction; where there is obstruction, Qi and blood cannot flow freely.” Thus, Qi stagnation and blood stasis are fundamental causes of pain.

Causes include internal factors such as emotional depression or stress, and external factors such as physical trauma—including contusions, sprains, and other injuries. Treatment typically involves herbs that promote blood circulation and resolve stasis. Therefore, “Qi stagnation and blood stasis” is not a discrete disease entity, but rather a general pathological pattern describing an abnormal state of Qi and blood circulation in the body.