Most of the albumin in normal people is between 35-45g/L. For normal people, in addition to food and such intake, it is mainly due to the synthesis of albumin by the liver. If the liver function is poor, it can cause the patient’s body albumin to be too low. However, if the albumin in the body is slightly high, there is generally no pathological significance at this time, and the patient can continue to observe and pay attention to exercise. In addition, by reducing the intake of protein-based foods, the patient’s albumin will normalize. However, in patients with reduced albumin, the patient may experience swelling and fluid accumulation in the body cavity, including pleural and abdominal fluid. In patients with reduced albumin, it is necessary to further examine whether the patient’s albumin deficiency is caused by prolonged fasting and water, or whether the patient’s albumin deficiency is caused by liver disease. If the latter is the case, it is necessary to further examine the cause of the decreased albumin, whether it is due to hepatitis, cirrhosis, or other liver diseases, such as tumor diseases of the liver. After the cause is identified, further treatment is needed according to the cause, and if necessary, the patient needs to be treated with intravenous albumin infusion to replenish albumin.