The causes of liver qi stagnation (poor qi and blood transportation of the liver, emotional depression) are mainly due to internal injury of emotions and feelings, feeling of external evils, and improper use of medication. Emotional internal injury: the liver’s physiological characteristics for the like to organize, evil depression. Emotional upset, resentment and anger, so that the liver is not organized, the qi is not smooth (the body’s gas does not run smoothly), resulting in liver qi stagnation and qi depression. Feeling of external evils: dampness, heat and epidemiological toxins invade the human body, damaging the liver, the liver excretory function, regulating the whole body’s qi dysfunction, qi stagnation, symptoms of liver qi stagnation. Improper use of medication: drugs have cold, hot, warm and cool, if the long-term use of bitter cold drugs, or drugs with a dampness, etc., damage to the liver, liver qi depression can not be timely vent, and the formation of liver qi stagnation. Need to pay attention to, if the body feels sick, it is recommended to go to the hospital as soon as possible, under the guidance of the doctor to carry out scientific treatment, do not avoid medical treatment, not to mention self-medication, in order to avoid delaying the condition, or produce adverse reactions.