Breast Lumps During Breastfeeding: What You Need to Know - Obstetrics and Gynecology

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Thank you for taking the time to answer my question.
I am currently breastfeeding, but I discovered a hard lump on the left side of my left breast the other day.
The older generation believes it might be a blocked milk duct, but it doesn't hurt while breastfeeding; it only hurts when I press on it.
Will this affect my ability to breastfeed, as I am not ready to wean yet?

Ms. Zhang, 20~29 year old female. Ask Date: 2002/12/31

Dr. Wu Zongcheng reply Obstetrics and Gynecology


During breastfeeding, if you notice a hard lump in your breast, the first possibility that comes to mind is a blocked milk duct, which can lead to the formation of a hard lump.
It is reasonable to explain this as mastitis.
1.
Currently, it is recommended that you perform breast massage and apply warm compresses (especially to the area of the hard lump).
2.
After the breastfeeding period, consider scheduling a breast ultrasound examination.

Reply Date: 2002/12/31

More Info


Breast lumps during breastfeeding can be a common concern for many mothers. It’s important to understand the potential causes, symptoms, and treatment options available to ensure both the mother and baby remain healthy during this time.

Firstly, the lump you are experiencing could be due to several reasons. One common cause is a blocked milk duct, which can occur when milk is not fully drained from the breast. This can lead to a buildup of milk, resulting in a hard lump. Blocked ducts are often not painful unless pressure is applied, which aligns with your experience of tenderness when pressing on the lump but not during breastfeeding.
Another possibility is mastitis, an infection of the breast tissue that can occur during breastfeeding. Symptoms of mastitis typically include breast pain, swelling, warmth, and redness, along with flu-like symptoms such as fever and chills. However, since you mentioned that you do not experience pain while breastfeeding, it may be less likely that you have mastitis, especially if the lump is not accompanied by other systemic symptoms.

In some cases, breast lumps can also be benign tumors, such as fibroadenomas or cysts, which are generally not harmful but should be monitored. It’s crucial to differentiate between these conditions, as some may require further evaluation.

To address your concern about whether this lump will affect breastfeeding, the good news is that most lumps, especially those related to blocked ducts, do not prevent you from breastfeeding. In fact, continuing to breastfeed can help clear the blockage. Here are some steps you can take:
1. Frequent Feeding: Ensure that you are breastfeeding frequently and allowing your baby to fully empty the breast. This can help relieve the pressure and potentially clear the blockage.

2. Warm Compresses: Applying a warm compress to the affected area before breastfeeding can help open up the ducts and facilitate milk flow.

3. Massage: Gently massaging the lump while breastfeeding can also help to encourage milk flow and relieve any blockage.

4. Positioning: Experiment with different breastfeeding positions to ensure that your baby is effectively draining the breast.

5. Stay Hydrated: Drink plenty of fluids and maintain a balanced diet to support milk production.

If the lump persists, becomes increasingly painful, or if you develop any additional symptoms such as fever, it is essential to consult with a healthcare provider. They may recommend imaging studies, such as an ultrasound, to evaluate the lump further and rule out any serious conditions.

In summary, while discovering a lump in your breast during breastfeeding can be concerning, many lumps are benign and can be managed effectively. Continuing to breastfeed, using warm compresses, and ensuring proper drainage of the breast are key steps you can take. However, always consult with a healthcare professional if you have any concerns or if the lump does not improve, as they can provide personalized advice and treatment options based on your specific situation.

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