Can liver cysts grow larger?

Hepatic cysts may increase in size, but in most cases, they grow slowly or remain stable. Hepatic cysts are benign lesions within the liver formed by abnormal dilation of intrahepatic ductal structures, and most do not proliferate rapidly. However, if complicated by infection, hemorrhage, or located in a specific position, volume changes may occur. Cyst enlargement is usually related to individual differences, vascular proliferation in the cyst wall, or fluid secretion. Some patients may experience symptoms due to compression of surrounding tissues by the cyst. Imaging studies are needed to determine whether the cyst is complicated or represents a tumorous lesion rather than a simple cyst.

It is recommended to undergo liver ultrasound examination every 6–12 months to monitor changes in the cyst's size and morphology. If abdominal pain, fever, or a cyst larger than 5 cm develops, prompt medical evaluation is necessary to determine whether puncture drainage or minimally invasive surgery is required. Vigorous exercise should be avoided in daily life to prevent cyst rupture, and a low-fat diet is recommended to reduce the burden on the liver. If abnormal symptoms such as jaundice or weight loss occur, further investigations should be carried out to exclude other liver diseases. Regular follow-up according to medical advice is important, and self-medication, especially with hepatotoxic drugs, should be avoided.