Right rib pain for one year is not necessarily liver cancer. There are many possible causes for right rib pain, first of all, consider whether it is herpes zoster, you need to observe whether there is herpes on the skin surface of right rib, in addition, it may also be intercostal neuritis, costochondritis, gallstones, gallbladder inflammation, gastroenteritis, hepatitis, cirrhosis, and other diseases which may lead to right rib pain for one year. The diagnosis of liver cancer needs to be confirmed by imaging examination, alpha-fetoprotein, pathology biopsy and other related examinations. Liver cancer can also present the symptom of pain in the right rib, but it cannot be diagnosed by one year of pain in the right rib alone. However, one cannot diagnose liver cancer simply by having pain in the right rib for one year. People with high risk of liver cancer should have regular checkups of liver ultrasound and alpha-fetoprotein, etc., so that early detection of lesions can be made. If you have pain in the right rib for one year, you should consult a doctor in time, complete the relevant examination, clarify the cause of the disease and treat it actively.