When Is Itchy Skin a Cancer Symptom?

Both cancer itself and cancer treatments may cause itching (pruritus)

Itchy skin, or pruritus, can be a symptom or even the first sign of some cancers, including blood-related, skin, liver, gallbladder, and bile-duct cancer cancers. However, other causes of itching are certainly much more common.

Itching may occur due to direct irritation of the skin, such as with skin cancer or a separate cancer that has spread, or metastasized, to the skin.

Read more here: https://www.verywellhealth.com/is-itchy-skin-a-cancer-symptom-4582580