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Why is my breast milk turning red?

Understanding the Causes of Red Breast Milk
Seeing red in your breast milk can be alarming, but it’s important to understand that there are several potential reasons for this phenomenon. While it can be concerning, many causes are benign and manageable.
1. Blood in Breast Milk
One of the most common reasons for breast milk to appear red or pink is the presence of blood. This can occur due to a small rupture in a blood capillary in the nipple or breast tissue, often resulting from breastfeeding or pumping. Such ruptures can lead to a pinkish tint in the milk, which is usually harmless.
Another condition known as rusty pipe syndrome can also cause reddish milk. This typically occurs in the early days of breastfeeding when increased blood flow to the breast tissues coincides with the onset of milk production. The term “rusty pipe” refers to the appearance of the milk, which may contain old blood that has pooled in the milk ducts.
2. Bacterial Infections
In some cases, the presence of a bacterium called Serratia marcescens can lead to bright pink or red milk. This bacterium can grow in the milk and cause discoloration, which may also be accompanied by other symptoms such as an unusual smell or changes in the consistency of the milk. If you notice this change, it’s advisable to consult a healthcare professional to rule out any infections.
3. Other Medical Concerns
While many causes of red breast milk are benign, persistent discoloration could indicate more serious issues, such as a breast infection or, in rare cases, conditions like intraductal papilloma, which is a non-cancerous growth in the breast that can cause bloody discharge . If the red milk continues or is accompanied by pain, swelling, or fever, seeking medical advice is crucial.
When to Seek Help
If you notice that your breast milk is consistently red or pink, or if you experience any discomfort, it’s important to consult with a healthcare provider. They can help determine the underlying cause and recommend appropriate treatment if necessary. Remember, while many causes are harmless, it’s always better to err on the side of caution when it comes to your health and that of your baby.

Why did my milk turn red?

Bacterial Contamination: Certain bacteria, such as Bacillus cereus, can produce pigments that may give milk a pinkish or reddish hue. This is especially likely if the milk has been stored improperly or is past its expiration date.

What does redness on breast mean when breastfeeding?

Mastitis, which mainly affects people who are breastfeeding, causes redness, swelling and pain in one or both breasts. The redness may be harder to see on Black or brown skin. Mastitis is swelling and redness, called inflammation, of breast tissue. It sometimes involves an infection.

What causes strawberry milk?

Pink breast milk is common enough that it has its own nickname – strawberry milk. This can occur while pumping if blood from the nipple or breast seeps into the pumped milk, turning it a cute pink hue. Pain is not cute though! If this is happening to you, it’s worth trying some ways to improve your pumping comfort.

Is it okay for a baby to drink blood breast milk?

In most cases, it’s safe or even helpful to continue breastfeeding if you see blood in your breast milk. This can sometimes be a sign of health problems for the mother, but it’s not dangerous for babies. Some mothers find that blood in the breast milk causes babies to spit up more, but this is rarely cause for concern.

Can babies drink red breast milk?

With blood, there’s not much you can do about its presence in milk except ignore it. Small amounts of human blood in milk is not a problem for a breastfeeding infant. Just the smallest drop of blood will noticebly stain your milk quite red. Its not anything to worry about.

Can babies drink red breastmilk?

Small amounts of human blood in milk is not a problem for a breastfeeding infant. Just the smallest drop of blood will noticebly stain your milk quite red. Its not anything to worry about. As for Serratia marsescens, it is a common everyday bacterium which is usually harmless.

What color is mastitis milk?

Red or pink milk lasts for more than a few days. Brown milk continues, which might be mastitis (a breast infection).

Does spoiled milk turn red?

Signs your milk has spoiled
With enough time, the texture and color of milk that has spoiled will change as well. It may begin to develop a slimy, chunky texture and dingy, yellow color.

Can babies drink mastitis milk?

Mastitis is not contagious: there is no risk to your baby in continuing to breastfeed.

What does it mean when your breast milk is red?

Red or brown breastmilk. usually means blood or broken-down blood products.

Natasha Lunn

Tash is an IBCLC and Business Coach helping fellow IBCLCs create fun, profitable businesses that are more than just an expensive hobby. Before becoming an IBCLC and starting her private practice - The Boobala, Tash graduated as an Osteopath in 2008 and has been in Private Practice in South West Sydney. She was also a volunteer Breastfeeding Counsellor and Community Educator with the Australian Breastfeeding Association for 6 years. Through her business, Your Lactation Biz, Tash coaches and creates products to help new and seasoned IBCLCs build businesses that suit their personality and lifestyle.

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