If a liver cyst becomes malignant, it may present with a rapid increase in size in a short period, fast growth, and possibly pain in the liver area. It may also affect liver function, leading to clinical symptoms like ascites and jaundice.

Therefore, it is crucial to address a liver cyst as soon as possible. The only treatment method is surgical removal to achieve a cure, so it is essential to complete relevant examinations promptly, exclude contraindications for surgery, and proceed with surgical treatment as soon as possible.

After surgery, patients still need regular follow-up checks such as ultrasound and CT scans to assess the condition periodically, prevent recurrence and metastasis. Diet-wise, it is also recommended to consume foods high in protein to supplement the body's needed albumin for better disease control.