Is a Breast Lump During Breastfeeding Normal or a Sign of Cancer?

It is normal for a woman’s body to undergo changes after childbirth, but some changes require special attention. One common concern during breastfeeding is the formation of a lump in the breast.

Many women notice a hard spot or a bulge in the breast while nursing. Naturally, this raises the question: is it just a result of milk coagulation, or could it be a sign of breast cancer?


Causes of Breast Lumps During Breastfeeding

According to Dr. Saloni Chaddha from the Gynecology Department at Delhi’s Safdarjung Hospital, there are multiple reasons why a lump may form in a breastfeeding woman’s breast. Some causes are temporary and harmless, while others need medical attention.

  1. Milk Engorgement:
    When the breast produces more milk than the baby consumes, pressure can build up, causing hardness or lump-like areas in one or more parts of the breast.

  2. Blocked Milk Duct:
    Milk ducts can get blocked, leading to milk accumulation that feels like a lump. This is often accompanied by pain and mild redness.

  3. Mastitis:
    Mastitis is an infection that occurs when milk stagnates and bacteria enter the breast. Symptoms include redness, swelling, warmth, pain, and sometimes fever.

  4. Fibroadenoma or Cysts:
    Some lumps are unrelated to milk and are simple benign lumps such as fibroadenomas or cysts, which are generally harmless.


When to Be Cautious

Dr. Saloni advises that while most lumps are caused by milk clotting or infections and are not cancerous, they should not be ignored. Seek immediate medical attention if you notice:

  • Rapidly growing lump

  • Persistent pain

  • Changes in breast color

  • Nipple discharge, especially blood

  • Lumps that do not reduce over time


What to Do if Milk Forms Lumps

  • Apply warm compresses to the affected area

  • Feed the baby in different positions to help drain milk

  • Gently massage the lump to relieve blockage

  • Take antibiotics if prescribed by your doctor

  • Ensure rest and adequate hydration

  • Consult a doctor for timely examination

Physical examination and tests like ultrasound or mammography can help determine whether the lump is harmless or requires further treatment.

Key Takeaway: Not every breast lump during breastfeeding is cancerous, but awareness, timely care, and medical consultation are essential to protect your health.