Women with a fibrocystic disease should continue to do breast self-examination. By getting to know the texture of your own breast, whether they are lumpy, or nodular, and the location of the areas of tenderness, are all important points. When you do breast self-examination, you are feeling for a change. The analogy that another a physician has used for this is like looking for a rock or a boulder in a gravel road. No, it does not inevitably or eventually lead to breast cancer.
Most fibrocystic conditions are completely benign.
There is a very small subset of women with fibrocystic problems who are predisposed to breast cancer. This can be identified by breast biopsy or sometimes by mammography. It would be more accurate to say when should you see a doctor. The Answer is if your breasts are bothering you, or if you find a lump in your breast. The fibrocystic tendency itself doesn't need any specific treatment.