The disappearance of liver cysts is generally rare in clinical practice. Liver cysts are common lesions of the liver, in most cases, caused by abnormal development of bile ducts and lymphatic vessels, which may be related to inflammation and infection, etc. The disappearance of liver cysts is mainly seen in smaller liver cysts, cellular hyperplasia and shrinkage of the cyst wall, as follows There are certain differences among different imaging examinations, it is possible that color ultrasound can see and CT and MRI cannot see, or it is possible that the diameter of liver cyst is small and ultrasound has missed it during the examination. 2. cell proliferation: after the inflammatory infection is controlled, cell proliferation will occur in liver cyst, which will fill the cyst and cause it to disappear. 3. cyst wall atrophy: the cyst wall of liver cyst has atrophy, which eventually causes the liver cyst to disappear. Whatever the cause of the disappearance of liver cysts, there is no need to be nervous, the main thing is to follow up and observe regularly. If the cyst is small, without significant enlargement, without clinical symptoms and without liver function abnormalities, it can be followed and observed regularly. If the cyst exceeds a certain diameter and produces clinical symptoms, surgery and puncture and drainage can be considered.