Qi and blood stasis may be caused by trauma, emotional and emotional disorders, and feeling of external evils. 1. Trauma: if the body is hit, squeezed or fall from a height to form bruises, bruises affect the operation of qi, resulting in qi and blood stasis phenomenon. 2. Emotional disorders: emotional internal injuries can lead to internal organs and qi dysfunction, and qi dysfunction can hinder the internal organs of the qi process, leading to qi stagnation, and the normal operation of the blood depends on the promotion of qi, if the qi line is not smooth, can’t line of blood, the blood stops, there is a phenomenon of qi and blood stasis. 3. Feeling external evils: wind, cold and dampness attacking the body may block the meridians and channels, leading to poor qi and blood circulation, thus causing the manifestation of qi and blood stasis. Because of the causes of qi and blood stasis, the specific situation should also go to the hospital in time for examination and diagnosis, as soon as possible to carry out targeted treatment.