How long it takes for liver stones to become cancerous depends on the patient’s specific condition. Liver stones may become cancerous, but the chance is small. If it is a simple liver stone and the patient has no other uncomfortable symptoms and no other complications, it will not become cancerous and can be treated actively with doctors. However, if liver stone causes local inflammation for a long time, it will promote cell degeneration and may become cancerous, but the exact time varies from person to person. If patients have liver stones, it is recommended to go to the hepatobiliary surgery department of a regular hospital in a timely manner for symptomatic treatment after examination by a professional doctor. In daily life, it is necessary to eat a light diet and avoid high-fat and high-protein foods.