Many cancer patients do not exhibit obvious symptoms after becoming ill. This is particularly true for many liver cancer patients who do not feel anything unusual after contracting the disease, leading to a lack of timely detection and treatment. By the time they are diagnosed, the disease has often already reached an advanced stage. At this advanced stage, treatment becomes quite difficult. If a patient experiences severe pain in the right shoulder, it generally indicates that the liver cancer has reached a late stage. The pain during this period has no specific characteristics; it is simply a sensation of pain.