Dear purpledolphin3: Have you recently changed laundry detergents or bath soaps? Have you purchased new undergarments? As this itching is on both breasts, this sounds more like it could be a contact dermatitis or skin allergy. The type of cancer you are concerned about - called Paget's disease -generally presents on one breast as scaling, bleeding, redness and itching - and it is uncommon. If you cannot identify any reason (from the list above) that you might be having this itching, you should see your doctor. He/she may refer you to a dermatologist.
If there's no rash, it's pretty unlikely to be related to breast cancer (I assume the form referred to is the one called Paget's disease.) It's not a worrisome symptom, but any change in your breasts should be evaluated. Meanwhile, you should experiment with different bras: try to find a pure cotton one, or put cotton cloth on the inside. Short-term, it might help to use an over the counter cortisone creme. But still have it cheked, to be safe.
I would go see a doctor right away. About a year ago my friend had an itchy area on her breast that turned into a rash. She went to the doctor and they treated it as an infection for awhile. Finally they did a biopsy and it was cancer... Inflammatory Breast Cancer. A very rare form of cancer and the most deadly. It does not normally show up on a mammagram... hers didn't. A week and a half ago my friend died. It had spread to her lungs and throat. Ladies... we need to be aware of this deadly cancer.
I wish you well...
Patricia
Thank you all for you help. As I am going to call my OB/GYN this afternoon and get in right away.