Are itchy nipples always a sign of breast cancer?

Not itching by: Itself, but eczematoid changes in nipple could be sign of bowen's disease, which is a form of breast cancer located just under the nipple. Show it to your doctor to make sure.

Probably not.: Most of the time this is dermatologic. There is a type of breast cancer known as paget's disease of the nipple that can present as an excoriated lesion on the nipple or areola. If this type if lesion is present and does not resolve, consider seeing a dermatologist or breast surgeon. Although unlikely, a biopsy would be a very quick, simple procedure.