Liver cysts that are not detected by color ultrasound may be due to the fact that they are very small and have absorbed on their own, or their location is hidden and cannot be detected with the interference of abdominal gas. Color ultrasound is the first choice for liver cysts, and the diagnostic accuracy of the disease can be as high as 98%, this examination method has the advantages of non-invasive, high sensitivity, simple and easy to implement. Through color ultrasound and other imaging tests, the nature, size, location, number and liver involvement of the cyst can be clarified. In addition to ultrasound examination, CT examination, MRI examination, selective angiography examination, etc.; routine blood examination can assess various physiological and biochemical indexes, liver function, etc.; tissue biopsy can clarify the nature of the occupying space and determine whether there is the possibility of cancerous transformation. It is recommended that people with symptoms of liver cysts, such as jaundice and abdominal distension, should consult the doctor in time, undergo relevant examinations to make a clear diagnosis, and take active treatment.