Itchy neck is not necessarily cancer. The causes of itching in the neck are mostly histamine or bioalkaline stimulation of the peripheral nerves of the neck skin, classified as skin diseases or other diseases. Patients with skin diseases, such as rash and eczema, have more sweating in the neck and may have itching symptoms, with nodules and lesions on the skin surface. Patients with other diseases, such as chronic liver disease or tumor, may produce histamine substances with the development of the disease, which may stimulate the skin of the neck and cause patients to have symptoms of itching in the neck, but most patients have smoother skin surface and no specific changes. If the symptoms of neck itching occur, it is recommended to seek medical attention for diagnosis and treatment in a timely manner.