The number of days it takes for a patient to recover from blood loss is not generalizable and depends on the amount of blood loss and the cause of blood loss. In patients with a small amount of blood loss, blood volume can generally recover quickly with fluid supplementation. In patients with excessive blood loss, for example, more than 800ml, it can cause a sharp drop in blood volume, resulting in impaired blood supply to multiple organs throughout the body and even hemorrhagic shock. Patients with excessive blood loss mainly focus on replenishing fluids and blood. Patients can take drugs such as Compound Agaricus Oral Liquid and Beneficial Qi and Blood Oral Liquid, as well as consume more iron-rich foods, such as pig liver, blood products and meat, etc. There is no clear clinical time on how long it takes to recover. In addition, patients who have lost a lot of blood during the recovery period should also pay attention not to strain, avoid cold and flu, do not eat cold, greasy and difficult to digest food, drink more turtle soup, chicken soup, bone broth, etc.