Stagnation of qi:
This means that in some parts or viscera, because of trauma, there occurs the disturbance of qi activity, the flow of qi is stagnated. Damage of qi exhibits distention, distress and pain, but distension more remarkable than pain and the pain is characterized by migration. Stagnation of qi may occur everywhere in the body.

Blockage of qi:
It is often caused by the failure of qi to go outside due to the obstruction of the stagnant blood in the case of severe trauma. The main manifestations are transient faint, coma, dysphoria or lethargy, even syncope. Blockage of qi is most closely related to the heart and brain in pathogenesis.

Deficiency of qi:
It is a pathological state caused by insufficiencies of some or all viscera of the body. Development of qi deficiency concerns hypo-production or excessive consumption of qi. It is often seen in the chronic trauma, or convalescent stage of a serious trauma, or in the old and weak patients. The main symptoms are lassitude, lower voice, shortness of breath, reluctance to talk, spontaneous sweating, poor appetite, loose stools, etc.

Loss of qi:
It is a syndrome in which qi fails to preserve inside and is then followed by massive bleeding. It is seen in the rupture of internal organs in thoracic or abdominal cavities with massive hemorrhage. The main symptoms are unconsciousness, closed eye, open mouth, tachypnea, pale complexion, sweating, cold limbs, urinary and fecal incontinence, etc. This is a critical syndrome.