Do I Really Need to Pump and Dump? What Breastfeeding Parents Should Know
By Peaceful Roots Lactation
One of the most common pieces of breastfeeding advice parents receive is:
“You’ll need to pump and dump.”
Maybe you’re having surgery. Maybe you’re getting a dental procedure, coloring your hair, or enjoying a glass of wine. Before long, someone tells you that your milk isn’t safe anymore.
The truth is that most medical procedures, medications, and lifestyle choices are not reasons to interrupt breastfeeding or discard your breast milk.
In many cases, “pump and dump” is outdated advice that can lead to unnecessary stress, wasted milk, and interrupted breastfeeding.
Let’s look at what the evidence actually says.
What does “pump and dump” mean?
“Pumping and dumping” refers to expressing breast milk and throwing it away because of concerns that it contains something harmful to your baby.
While there are a few situations where temporary interruption is necessary, they are much less common than many parents are led to believe.
For most routine medical care and everyday activities, breastfeeding can continue without interruption.
Most everyday activities are compatible with breastfeeding
Many parents are surprised to learn that breastfeeding is considered safe during or after common activities such as:
Drinking moderate amounts of caffeine
Having an occasional alcoholic beverage (if you are safe to drive, you are generally considered safe to breastfeed)
Hair coloring, bleaching, or other hair treatments
Teeth whitening
Acupuncture
Spray tans and tanning beds
Skin peels
Botox and dermal fillers
Laser skin treatments
Getting a tattoo after the postpartum period when proper sterile technique is used
Airport security scanners
These activities expose very little, if any, substance to breast milk.
Most medical procedures do not require stopping breastfeeding
Parents are often told to pump and dump after medical procedures, but this is usually unnecessary.
Breastfeeding can typically continue after:
Dental work, including local numbing medication
Minor surgical procedures
General anesthesia
Breast biopsies
Evaluation of breast lumps or nipple discharge
Most imaging studies
For healthy, full-term infants, the recommendation after anesthesia is simple:
Once you’re awake enough to safely hold your baby, you’re generally awake enough to breastfeed.
What about X-rays, MRIs, and CT scans?
Another common misconception is that imaging tests make breast milk unsafe.
Fortunately, this isn’t true.
Breastfeeding does not need to be interrupted after:
X-rays
Mammograms
CT scans with iodinated contrast
MRI scans with gadolinium contrast
Some specialized nuclear medicine studies may require temporary interruption, particularly those using radioactive iodine (I-131). PET scans typically require temporary separation of mother and baby for about 12 hours because of radiation exposure—not because the milk itself becomes unsafe.
Your healthcare team can tell you if your specific study requires special precautions.
Are medications safe while breastfeeding?
The vast majority of medications are compatible with breastfeeding.
This includes many:
Antibiotics
Blood pressure medications
Antidepressants
Anti-anxiety medications
Many acne treatments
Over-the-counter cold medications
Some medications can affect milk supply
While many medications are safe for your baby, a few can decrease milk production.
Examples include:
Estrogen-containing birth control pills
Decongestants containing pseudoephedrine
Some sedating antihistamines
Bromocriptine
Cabergoline
If maintaining your milk supply is important to you, talk with your healthcare provider about breastfeeding-friendly alternatives.
What if I have COVID?
Early in the pandemic, many parents were advised to separate from their babies.
We now know much more.
Current recommendations support continuing breastfeeding during COVID-19 while taking reasonable precautions such as hand hygiene and masking if appropriate.
Breast milk contains antibodies and other immune factors that may help protect infants. Research has also shown that vaccination during lactation leads to antibodies being present in breast milk, providing additional immune support for nursing babies.
What about marijuana?
Marijuana is one area where conversations deserve nuance.
Current professional organizations do not recommend marijuana use while breastfeeding because THC concentrates in breast milk and can remain there for extended periods. THC is also stored in body fat, and an infant’s developing brain contains a high percentage of fat, raising concerns about potential effects on neurodevelopment.
At the same time, breastfeeding provides substantial health benefits for both parent and baby.
For parents who use marijuana, decisions should be made through an individualized discussion that carefully weighs the risks and benefits. Current research is limited and has primarily studied smoked marijuana rather than edible products or other forms.
An open, nonjudgmental conversation with your healthcare provider or an IBCLC can help you make an informed decision that fits your family’s circumstances.
What about cigarettes and vaping?
Smoking and vaping are not recommended during breastfeeding, but breastfeeding is still encouraged whenever possible.
Nicotine exposure increases an infant’s risk of Sudden Infant Death Syndrome (SIDS), so reducing or quitting tobacco use is one of the best ways to protect your baby’s health.
If you’re trying to quit, medications such as bupropion are often considered compatible with breastfeeding. Your healthcare provider can help determine the safest option for you.
When should you ask for help?
It can be difficult to know whether advice you receive is based on current evidence or outdated recommendations.
Before stopping breastfeeding, discarding your milk, or deciding not to take a medication you need, reach out to a professional with expertise in lactation.
An IBCLC can work alongside your healthcare provider to review current evidence, discuss your specific situation, and help you make an informed decision that protects both your health and your breastfeeding goals.
The bottom line
Whether you’re having surgery, getting your hair colored, taking medication, or scheduling a medical test, there’s a good chance you can continue breastfeeding without interruption.
When in doubt ask someone who regularly works with breastfeeding families and stays current on the latest evidence.
Often, the answer is reassuring:
You can keep breastfeeding.
Disclaimer: This post is for educational purposes only and is not a substitute for individualized medical advice. Always consult your healthcare provider and/or an IBCLC about medications, procedures, substance use, or other concerns specific to you and your baby.
References
Academy of Breastfeeding Medicine. Clinical Protocol #15: Analgesia and Anesthesia for the Breastfeeding Mother.
Academy of Breastfeeding Medicine. Clinical Protocol #21: Breastfeeding in the Setting of Substance Use and Substance Use Disorder.
American College of Radiology. Manual on Contrast Media.
American Academy of Pediatrics. Breastfeeding and the Use of Human Milk.
Hale TW. Medications & Mothers’ Milk.
LactMed® Database. National Library of Medicine.
Centers for Disease Control and Prevention. Breastfeeding and Special Circumstances.
