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Breast lumps are common, especially in women ages 30 to 50. A number of conditions can result in a lump or lumps in your breast. Most of these conditions are harmless or of minor concern.
Generalized breast lumpiness usually feels like lots of little bumps (nodularity) or as though some areas of the breast are thicker or denser than other areas. Your breasts also may feel tender. The lumps may occur in both breasts around the nipple and in the upper, outer part of the breasts, especially before your menstrual period. The lumps may come and go and change size in just a few days.
Generalized lumpiness was once thought to be abnormal and was even called fibrocystic breast disease, but it is so common that it is now considered normal. Breast lumpiness usually goes away after menopause but may be found in women who are taking hormone therapy after menopause.
Following are other types of breast lumps and their symptoms.
Cysts and abscess lumps
- Cysts are fluid-filled sacs in the breast. They feel smooth or rubbery and move about under the fingers. They can be quite painful or tender, or they may be painless. Cysts are caused by the hormones that control the menstrual cycle. Cysts are rare in women older than 50 and are not related to breast cancer. If you have a cyst, your doctor may drain (aspirate) it to help relieve the pain and confirm the diagnosis.
- Abscesses are pockets of infection within the breast. They may be quite painful, and the skin over the breast may be red or feel hot or solid. You may feel feverish or ill. Abscesses are treated with antibiotics and surgery to drain the abscess. They are most common in women who are breastfeeding.
- Fat necrosis is a condition in which the normal fat cells of the breast go through a change and become round lumps. The lumps may or may not be painful and may be firm. The skin over the lump may be red or look bruised. Fat necrosis may occur after a bruise or other injury to the chest or breast and can occur from weeks to years after an injury. Fat necrosis usually goes away without treatment but can form permanent scar tissue that may show up as an abnormality on a mammogram.
- Lipomas are noncancerous lumps of fatty tissue. They can be small or large. A woman may have just one or several lipomas at once.
- Adenomas are noncancerous abnormal growths of the glandular tissue in the breast. The most common growths, fibroadenomas, are somewhat more common in women in their 20s and in women of African descent. They usually feel round and firm and have smooth borders. They may move a little under the fingers, be tender, and change with the menstrual cycle. Adenomas are not related to breast cancer.
- Intraductal papillomas are growths in the ducts of the breast. They usually feel like lumps just under the nipple and can cause a bloody discharge from the nipple. Women close to menopause may have only one growth. Several growths in both breasts are more common in younger women.
- Breast cancer usually feels like a hard or firm lump (nodule). It usually is irregular in shape (it does not have smooth edges) and may feel like it is attached (fixed) to skin or tissue deep inside the breast so that it cannot be moved without moving breast tissue. Breast cancer is rarely painful and can occur anywhere in the breast or nipple.
Blood clots in a vein (thrombophlebitis) can feel like a lump. The phlebitis affects the large vein that normally crosses the chest to the underarm area (axilla). Symptoms include pain, redness, warmth, and lumpiness along the course of the vein. Blood clots in the breast or on the chest wall are rare.
Current as of: August 2, 2022
Author: Healthwise Staff
Medical Review:William H. Blahd Jr. MD, FACEP - Emergency Medicine & Martin J. Gabica MD - Family Medicine & Kathleen Romito MD - Family Medicine & Kirtly Jones MD - Obstetrics and Gynecology
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Breast Cancer, Metastatic or Recurrent