Nearly eighty percent of all breast lumps are benign non-cancerous. Benign breast lumps are usually moveable and smooth, and can often be found in both breasts. There are several common causes of benign breast lumps: Benign breast changes Breast infection or injury Medications that may cause lumps or breast pain, especially birth control pills , hormone replacement therapy, soy products, and caffeine Breast tissue changes during a woman's entire life. Breast tissue is particularly sensitive to estrogen and progesterone hormone levels that often fluctuate during the menstrual cycle.
Breast cysts - Diagnosis and treatment - Mayo Clinic
Prospective study of "fibrocystic breast disease" and caffeine consumption. Heyden S, Muhlbaier LH. Conflicting reports have appeared in the recent literature on a presumed association between coffee intake and "fibrocystic breast disease. For a condition with a notorious reputation for "waxing and waning," it is essential to document the stability versus instability of clinical findings, keeping the methyl xanthine consumption constant. Seventy-two women, all with palpable breast nodules, were followed over a 6-month period with monthly examinations and questionnaires on intake of coffee, tea, soft drinks, chocolate, candies, and caffeine-containing drugs.
Show more related information Treatment No treatment is necessary for simple breast cysts — those that are fluid-filled and don't cause any symptoms — that are confirmed on breast ultrasound or after a fine-needle aspiration. If the lump persists or feels different over time, follow up with your doctor. Fine-needle aspiration Fine-needle aspiration may diagnose and treat a breast cyst if your doctor removes all the fluid from the cyst at the time of diagnosis, your breast lump disappears and your symptoms resolve.
These changes are sometimes called fibrocystic changes, and used to be called fibrocystic disease. Areas of fibrosis feel rubbery, firm, or hard to the touch. They are often felt as a round, movable lump, which might also be tender to the touch. Cysts begin when fluid starts to build up inside the breast glands. These can be felt easily and can be as large as 1 or 2 inches across.