Finding a lump in the breast can be a stressful experience, but it is important to know that the vast majority of breast lumps (around 80%) are non-cancerous (benign).
However, any new or unusual change should be evaluated by a healthcare professional to rule out serious issues and ensure peace of mind.
1. Common Causes of Breast Lumps
Lumps can occur in both women and men and are often caused by hormonal changes, fluid, or harmless tissue growth.
Cysts: Fluid-filled sacs that often feel like soft grapes. They may become larger or more tender just before a menstrual period.
Fibroadenomas: Solid, rubbery, non-cancerous tumors that move easily under the skin. These are very common in younger women.
Fibrocystic Changes: General lumpiness or “rope-like” texture caused by hormonal fluctuations.
Fat Necrosis: Firm lumps caused by damaged fatty tissue, often after an injury or surgery.
Infections (Mastitis/Abscess): Usually accompanied by redness, warmth, and pain.
Gynecomastia: Breast tissue swelling in men or boys, often due to hormone imbalances.
2. When to See a Doctor
You should make an appointment if you notice any of the following “red flag” symptoms:
The lump feels hard, fixed, or immovable.
The lump does not go away after one full menstrual cycle (4–6 weeks).
Skin changes, such as dimpling, puckering, or redness (resembling an orange peel).
Nipple changes, such as a nipple suddenly turning inward (inversion).
Spontaneous discharge from the nipple (especially if it is bloody or clear).
A new lump in the armpit or near the collarbone.
3. What to Expect at Your Appointment
Doctors typically use a “Triple Assessment” to provide an accurate diagnosis:
Clinical Exam: A physical examination of the breast and lymph nodes.
Imaging: * Ultrasound: Usually preferred for those under 30 or to see if a lump is fluid-filled (a cyst).
Mammogram: A specialized X-ray, typically for those over 30 or 40.
Biopsy: If imaging is inconclusive or suspicious, a small needle is used to take a sample of the tissue for testing.