Is itching all over the body a precursor to cancer?

General itching is not necessarily a precursor to cancer.

Although some cancers may cause symptoms of general itching, it is less common, and it is more likely to be caused by other benign conditions. First, general itching may be caused by dry skin, allergies, infections, or other skin diseases. In addition, some chronic diseases such as diabetes and thyroid diseases may also cause general itching. Cancer-related itching is usually caused by chemicals released by certain cancers that irritate the skin, but this itching is usually accompanied by other cancer symptoms, such as weight loss, fatigue, fever, etc. Therefore, if you feel itching all over the body without other obvious symptoms, it is not necessarily a precursor to cancer.

If you feel itching all over the body, it is recommended to seek medical advice in time for relevant examinations to determine the specific cause and appropriate treatment.