Fat milk is a scientifically formulated nutrient solution that is milky white in color, and is generally suitable for patients with high caloric needs, including those who cannot eat through the gastrointestinal tract or those who are prohibited from using proteins, etc. Usually ingested intravenously, it can provide the body with calories as well as essential amino acids and other nutrients. However, it is not suitable for everyone in the clinic. In addition, long-term use should be checked weekly for blood routine, coagulation function, blood sedimentation, etc. to observe the changes in blood picture and coagulation situation. Severe hepatic impairment and abnormal lipid metabolism is prohibited, and can not be added to other drug ingredients, including electrolytes and other components to prevent bleeding and coagulation system abnormalities.