The liver is an important parenchymal organ of the body and a normal liver has no cavities. Liver cavity is a description of liver imaging findings that suggests the development of certain diseases. The liver is the largest digestive gland in the human body, known as the body’s “metabolic factory”, is a substantial organ. Under normal physiologic conditions, there are no cavities in the liver. If liver cavity is detected by imaging, it indicates liver parenchymal disease. Common diseases that can produce liver cavity include: liver tuberculosis, liver abscess, liver cancer, etc. For those who have liver cavities, they should actively seek medical treatment and undergo physical examination and auxiliary examination. According to the results of the examination, we should comprehensively determine the primary cause of the disease and treat the primary disease, so as not to lead to serious liver function damage.