Itchy body is not necessarily the precursor of liver cancer, because there are many reasons leading to itchy body, such as allergic diseases, fungal infectious diseases, physical stimulation, etc., which can lead to itchy body. 1. Liver cancer: the reason why liver cancer patients have itchy symptoms is generally caused by the obvious increase of serum bilirubin level. Liver cancer can lead to the destruction of liver cells, resulting in the obstruction of bile excretion in the liver and the entry of bilirubin into the bloodstream, which stimulates the skin and leads to itchy phenomenon. 2. Allergic diseases: when patients ingest certain allergic foods, such as eggs, seafood, etc. or contact certain allergens, such as pollen, animal hair, etc., they can trigger allergic diseases, such as urticaria and atopic dermatitis, which can cause itching. 3. Fungal infectious diseases: when the patient is infected by fungi, it can lead to local skin diseases, such as ringworm, insect bite dermatitis, etc., which can lead to the patient’s body local skin rash and itching. 4. Physical stimulation: if the patient’s skin itself is relatively dry and lack of, or long-term exposure to sunlight, etc., can stimulate the local skin, resulting in itching and other discomfort. Therefore, there are more causes of itching, it is best to go to the hospital to improve the examination for diagnosis.