Causes of vomiting due to liver dysfunction include bile synthesis disorder, gastrointestinal dysfunction and other indigestion symptoms. The liver is the largest digestive gland in the human body, if the liver is not good, the liver function will be damaged, when the liver abnormalities will affect the synthesis of bile, into the stomach food can not be effectively decomposed, thus triggering indigestion and other symptoms. Loss of appetite, nausea and vomiting in bad liver is mainly due to the central nervous system dysfunction and gastrointestinal hypotonia, thus producing symptoms of loss of appetite, nausea and vomiting. It is due to the stimulation of the vomiting center in the medulla oblongata, which causes a series of muscle movements through nerve reflexes, causing the patient to produce nausea and vomiting. It is recommended that patients with abnormal liver function must go to the hospital as soon as possible to improve liver function, abdominal ultrasound and other tests. If it is clear that the liver function is abnormal, we must cooperate with the doctor to actively treat.