Patients with traumatic fractures, especially those with multiple traumas, suffer from post-traumatic malnutrition to varying degrees because of more blood loss, and the situation is more serious when combined with cranio-cerebral or abdominal trauma, because they cannot eat. At the same time, because of the post-traumatic bed-rest and reduced exercise, the original rhythm of life is disrupted, and the appetite often decreases and does not want to eat. It is more likely to occur in elderly patients, people with weaker constitution or poor mental capacity, and it is especially obvious in a short period after trauma or surgery. The diet should be nutritious, with good color, aroma and taste, which can stimulate the appetite. Eat more vitamin C-rich vegetables such as tomatoes, bok choy, cabbage and radish as appropriate to promote the growth of bone scabs and wound healing.