Itchy back is not a precursor of liver cancer, there is no scientific reason and basis. Itchy back is only a symptom and clinical manifestation, and there are many reasons for itchy back, generally considered to be caused by urticaria, dermatitis, eczema and so on. Early stage of liver cancer patients may be asymptomatic or atypical, with hidden pain and distension in the right rib area, accompanied by symptoms such as loss of appetite, emaciation and fatigue, etc. With the progression of the disease, generalized itching may appear, and itching is not confined to a certain part of the body, accompanied by symptoms such as ascites, fever and jaundice. Diagnosis of hepatocellular carcinoma infection can only be confirmed by medical history (mostly accompanied by history of chronic hepatitis B), physician’s examination (palpation of liver pain, pressure pain, etc.), auxiliary examination (CT, ultrasound, alpha-fetoprotein, liver puncture biopsy, etc.) and other relevant examinations, and the disease cannot be determined by a certain symptom alone. Itchy skin on the back can also be caused by urticaria, dermatitis, eczema and other skin diseases, which need to be clearly diagnosed after the cause of targeted treatment. Itchy back symptoms need to go to the hospital, after a clear diagnosis of treatment, you can not randomly use drugs.