The main reasons for lower albumin after hepatectomy include abnormal liver function, insufficient raw material for albumin synthesis and other reasons. 1. Abnormal liver function: the liver is the main organ for albumin synthesis, but partial hepatectomy will have a certain impact on liver function, thus affecting albumin synthesis. Some livers are partially resected due to primary or secondary diseases, and liver function is poorer before surgery, which also leads to albumin synthesis disorder to a certain extent. 2. Insufficient raw materials for albumin synthesis: hepatectomy is a more traumatic surgery in the clinic, the metabolism in the perioperative period is different from the usual, and there is a certain amount of loss of nutrients, which leads to excessive consumption of albumin and insufficient raw materials for synthesis. If you feel unwell, you should go to the hospital in time, and under the guidance of the doctor, give targeted treatment after clarifying the cause.