Depends on size
Most liver hemangioma
s are small and are a incidental finding during an ultrasound or ct exam. Small hemangiomas are not symptomatic.
Occasionally large hemangiomas, termed cavernous hemangioma, can bleed and cause pain in the right upper abdomen over the liver, but this is unusual. The great majority of hemangiomas never bleed and never cause symptoms and do not become malignant.