Fibrocystic changes of the breasts are very common, especially from the ages of 20 to 50, and are thought to be directly related to estrogen. Fibrocystic breast masses usually occur on a cyclic basis in relation to the menstrual cycle. They can be quite painful and often appear rapidly with the onset of menses, and then disappear afterward.
The most important characteristic of a fibrocystic lesion of the breast is that it resolves on its own. If your masses/cysts do not resolve, especially after a menstrual cycle, you need to see your physician so that the mass can be further evaluated to assure that it is not a cancerous lesion. This evaluation may necessitate cyst aspiration or biopsy of the mass.
Often people with fibrocystic changes of the breasts notice associated breast tenderness. This pain may be alleviated by wearing a tight bra for support. Although there is no good evidence to support its use, many physicians advocate use of vitamin E and reduction of caffeine to alleviate some of the symptoms.
If you have cysts under the skin, rather than in your breast tissue, you may need other treatments. You should see your physician to exclude this possibility.