Liver cysts can be examined by abdominal ultrasound or abdominal CT, and liver function tests are also needed to see if the patient’s liver function is abnormal. Liver cysts are often accidentally found by physical examination, because usually patients do not have any clinical discomfort, it is necessary to further check the abdominal ultrasound or abdominal CT, and at the same time, check whether the liver function is abnormal. Abdominal ultrasound is the first choice for checking liver cysts. It is operated without radiation and can observe the size, number and general location of liver cysts. Abdominal CT, if necessary, can be more intuitive understanding of the relationship between liver cysts and the surrounding tissues and organs, and at the same time check the liver function to see whether the patient’s liver function is affected. If the patient has any discomfort, he should go to the hospital in time to avoid carelessness, so as not to delay the treatment.