Slightly hypodense one-centimeter nodules in the liver are indicative of space-occupying lesions in the liver, which may be benign or malignant and require further examination to determine. For people with no previous history of hepatitis B or C and no alcoholic hepatitis, the presence of slightly low-density one-centimeter nodules in the liver is usually considered benign, and common causes include hepatic hemangiomas, hepatic cysts, focal nodular hyperplasia, hepatic adenomas, and inflammatory pseudotumors. For people with hepatitis B carriers, chronic hepatitis, and cirrhosis, the possibility of malignant nodules needs to be considered when low-density occupations in the liver are found. It is recommended to further perform abdominal enhanced CT, alpha-fetoprotein, MRI and other tests to clarify whether it is primary liver cancer.