A liver cyst of 2 cm currently does not require surgical treatment. A liver cyst is a benign tumor of the liver, and most are caused by congenital factors. Patients generally do not experience any discomfort and are mostly discovered during ultrasound exams. Therefore, small-volume liver cysts generally do not require special treatment. If the diameter is 2 cm, this is relatively small and does not require special treatment. However, it is still necessary to regularly recheck with ultrasound to monitor any changes in size dynamically. If there is a rapid increase in size over a short period, it should be taken seriously. Additionally, liver cysts generally do not affect liver function. If liver function abnormalities occur, surgical removal may be necessary.