Amerikan Hastanesi Mayoclinic
  • OUR HOSPITALS
    Select the hospital you want to process.
    • Bodrum Amerikan Hastanesi
    • MedAmerikan Tıp Merkezi
    • İzmir American Hospital
    • Antalya Amerikan Hastanesi
  • OUR SERVICES
  • OUR DOCTORS
  • CORPORATE
  • MAYO CLINIC HEALTH LIBRARY
  • CONTACT US
InternationalPatients
EN
  • American Hospital
  • Member Of Mayo Clinic Care Network
  • Mayo Clinic Health Information Library
  • Symptoms
  • Breast lumps
OUR HOSPITALS
  • Bodrum Amerikan Hastanesi
  • Amerikan Tıp Merkezi
  • Antalya Amerikan Hastanesi
  • İzmir Amerikan Hastanesi
Amerikan Hastanesi
  • OUR SERVICES
  • OUR DOCTORS
  • SERVICE LINE
  • NURSING CARE
  • KOÇ HEALTHCARE
  • ONLINE SERVICES
  • AMERICAN HOSPITAL PATIENT EXPERIENCE OFFICE
  • PATIENT RIGHTS
  • INTERNATIONAL PATIENTS
  • MEMBER OF MAYO CLINIC CARE NETWORK
  • GUEST GUIDE
  • PERFORMANCE INDICATORS
  • CORPORATE AGREEMENTS
  • HUMAN RESOURCES
  • CORPORATE
  • OUR VALUES
  • CONTACT US
  • VIRTUAL TOUR
How Can We Help?
Search
Our Hospitals Corporate Our Services Our Doctors
Choose a Language
  • English
    English
  1. HOMEPAGE
  2. MEMBER OF MAYO CLINIC CARE NETWORK
  3. SYMPTOMS
  4. BREAST LUMPS
Breast lumps
Last Updated on August 20, 2026

Breast lumps also can be caused by health problems that can happen during breastfeeding, such as:

  • Mastitis (an infection in breast tissue)
  • A milk-filled cyst that's usually harmless.

A breast lump is a growth that forms within the breast. Different types of breast lumps can vary in the way they look and feel.

You might notice:

  • A distinct lump with clear-cut edges.
  • A firm or hard area within the breast.
  • A thicker, slightly raised area in the breast that's different from the tissue around it.

You also might see these changes along with a lump:

  • An area of skin that has changed in color or turned red or pink.
  • Dimpling of the skin.
  • Pitting of the skin, which may look like an orange peel in texture.
  • A change in the size of one breast that makes it larger than the other breast.
  • Nipple changes, such as a nipple that turns inward or releases fluid.
  • Lasting breast pain or tenderness, which is in one area or may go on after your period.

A breast lump can be a sign of breast cancer. That's why you should get it checked by your health care provider as soon as you can. It's even more important to get a breast lump checked after menopause. The upside is that most breast lumps are benign. That means they are not caused by cancer.

Causes

Breast lumps can be caused by:

  • Breast cancer
  • Breast cysts (which are fluid-filled sacs in breast tissue that are not cancer. The fluid in a cyst looks like water. An imaging test called ultrasound is used to find out if a breast lump is a cyst.)
  • Fibroadenoma (a solid, benign growth within the breast glands. It is a common type of breast lump.)
  • Fibrocystic breasts
  • Intraductal papilloma.
  • Lipoma (a slow-growing lump involving fatty breast tissue. It can feel doughy, and it is often harmless.)
  • Trauma to the breast from a bump, breast surgery or other reasons.
When to see a doctor

Make an appointment to have a breast lump checked, especially if:

  • The lump is new and feels firm or fixed.
  • The lump doesn't go away after 4 to 6 weeks. Or it has changed in size or in how it feels.
  • You notice skin changes on your breast such as crusting, dimpling, puckering, or a change in color, including red and pink.
  • Fluid comes out of the nipple. It might be bloody.
  • The nipple recently turned inward.
  • There is a new lump in the armpit, or a lump in the armpit seems to be getting bigger.
Test diagnosis tab content
Test doctor tab content
Prepared by American Hospital Medical Editorial Board.
Update Date: 24 August 2026
Publication Date: 29 June 2024
For your questions and suggestions, you can contact our editorial team using the e-mail address below.
info@amerikanhastanesi.org
©1998-2024 Mayo Foundation for Medical Education and Research.All rights reserved
Terms of Use
OUR SERVICES
FINESSE AND PERFECTION CENTER
CODE LOTUS
OUR DOCTORS
CONTACT US
CORPORATE
  • Our values
  • The Vehbi Koç Foundation (VKV) and Board of Directors
  • Message of CEO
  • Organization Chart and Management
  • History
  • Human Resources
NEWS
GUEST GUIDE
  • Corporate Agreements
  • Patient Admission Process
  • Accompanying Policy
  • Plan Your Visit
  • Frequently Asked Questions
ONLINE SERVICES
  • Web Baby
  • Lab Results
CONTACT FORM

You may submit your wishes, suggestions, thanks and complaints by completing the form below or calling 444 3 777 in order for us to provide you better and quality service.

For more detailed information about your personal data, please read the Patient Privacy Notice

  • Bodrum American Hospital
  • American Outpatient Medical Center
  • Koc University Hospital

2026, Copyright American Hospital

Virtual Tour
Protection of Personal Data
Information Society Services
Contact : +90 212 444 3 777
Manage Cookie Preferences
  • certifica1
  • certifica2
Design & Developed by POMPAA