Mastalgia, breast cysts, and nondescript lumpiness are common and often occur together; none of these conditions is abnormal. The combination is frequently described under the catchall term fibrocystic disease.
''The two most common types of benign breast lumps are cysts and fibroadenomas. In addition, there are several other conditions that can present themselves as lumps, such as fat necrosis and sclerosing adenosis.''