Breast Pump: What It Is and When You Might Need One
 Category | Feeding |
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⏱️ Reading time: 4 minutes
Medically reviewed by pediatrician Alexandra Zglavosiy
A breast pump helps express milk and maintain lactation when needed. It’s useful during separation from your baby, engorgement, or for building a milk stash. Manual models work well for occasional use, while electric pumps suit regular pumping. Always clean and store milk properly. Avoid used pumps — they may carry bacteria.
What’s Inside
Quick takeaways
A breast pump helps maintain breastfeeding when you're away from your baby, experiencing engorgement, or building a milk stash. Use a manual pump for occasional use, and an electric one for regular pumping.
Before the first use, sterilize all parts and begin with the lowest suction setting to avoid discomfort.
Store milk in small portions: up to 4 days in the fridge, up to 6 months in the freezer. Never thaw in the microwave — use the fridge or cold running water.
Wash all parts with warm soapy water after each use. Sterilize 1–2 times a day.
Avoid used pumps — even with careful cleaning, they may harbor bacteria.
Not every mom needs a breast pump — but it can be helpful in many situations
A breast pump is a device that mimics a baby’s sucking to help express milk. It includes a flange (placed on the breast) and a mechanism that creates gentle vacuum pressure to stimulate milk flow.
You might need one if:
- You’ll be away from your baby — returning to work, running errands, or leaving baby with a caregiver.
- You’re dealing with engorgement (clogged ducts) — if your breasts are too full and your baby can’t empty them, pumping relieves pressure and discomfort.
- You’re experiencing oversupply (hyperlactation) — pumping can ease fullness.
- Your baby is premature or has trouble latching — pumping ensures baby still receives your milk.
- You’re separated from your baby — hospitalization or other temporary separation.
- You want to build a milk stash — for times when you’re away.
- You’re traveling — sometimes it’s hard to find a quiet place to nurse on the go.
There are manual and electric breast pumps
Each has pros and cons.
Manual (hand-powered)
- No electricity required, less expensive
- Requires hand effort and time
Electric (battery or plug-in)
- Automatic suction, great for frequent pumping
- Some models mimic baby’s natural sucking
- More expensive, may be noisy
If you’ll only pump occasionally — a manual pump may be enough. If pumping is frequent, an electric model is more convenient.
It’s best to buy your own pump. Pediatricians don’t recommend borrowing one, renting, or buying used — they may carry bacteria even if cleaned thoroughly.
How to pump safely and effectively
- Choose a calm, comfortable space. Relax, sip a warm drink, think about your baby — this can help with letdown.
- Position the flange snugly on your breast to prevent leakage and discomfort.
- If using an electric pump, start at the lowest suction level. Increase gradually if needed.
- Pump based on your goal:
- For relieving fullness: pump until comfortable
- For replacing a feeding: pump until the breast feels empty
- Store milk properly:
- Fresh milk in the fridge (up to 4 days at ≤ 39°F / 4°C)
- Freeze for up to 6 months in sterilized containers
- Sterilize the pump before each use. Keep all parts clean.
To safely thaw milk and preserve nutrients, place it in the fridge or under cold running water. Never thaw in hot water or the microwave.
Clean the pump regularly
- After each use, wash all parts with warm water and mild soap.
- Sterilize once or twice a day (especially in early months). Use boiling water or a steam sterilizer.
- Store dry, in a clean container to avoid contamination.
FAQ about breast pumps
— Can I express milk by hand instead of using a pump?
Yes, but it takes practice. A pump makes the process faster and more convenient — which matters when time is limited.
— Is pumping painful?
It shouldn’t be. If it hurts, check the fit of your flange or suction level.
— How often should I pump?
Only when necessary. If your baby feeds well at the breast, you usually don’t need to pump routinely.
With care
Our articles are based on evidence-based medicine and reviewed by pediatricians. However, they do not replace a consultation with your doctor. Every child is unique — if you have any concerns, please consult a medical professional.
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Sources
- Eglash A, Simon L; Academy of Breastfeeding Medicine. ABM Clinical Protocol #8: Human Milk Storage Information for Home Use for Full-Term Infants, Revised 2017. Breastfeed Med. 2017 Sep;12(7):390-395. doi: 10.1089/bfm.2017.29047.aje. Epub 2017 Jun 29. Erratum in: Breastfeed Med. 2018 Jul/Aug;13(6):459. doi: 10.1089/bfm.2017.29047.aje.correx. PMID: 29624432. https://pubmed.ncbi.nlm.nih.gov/29624432/
- “Once Baby Arrives (Food Safety for Moms-to-Be)”, U.S. Food and Drug Administration, https://www.fda.gov/food/people-risk-foodborne-illness/once-baby-arrives-food-safety-moms-be. Accessed 01 Apr. 2025.
- “What to Know When Buying or Using a Breast Pump”, U.S. Food and Drug Administration, https://www.fda.gov/consumers/consumer-updates/what-know-when-buying-or-using-breast-pump. Accessed 01 Apr. 2025.
- U.S. Centers for Disease Control and Prevention, https://www.cdc.gov/breastfeeding/breast-milk-preparation-and-storage/handling-breastmilk.html. Accessed 01 Apr. 2025.
- “Breast Pump”, Cleveland Clinic, https://my.clevelandclinic.org/health/articles/25244-breast-pump. Accessed 01 Apr. 2025.
- Mohammed T, Aradhya AS. Breast Pump Hygiene: A Missed Opportunity in Parental Education. Indian J Pediatr. 2025 Mar;92(3):322. doi: 10.1007/s12098-024-05374-w. Epub 2024 Dec 26. PMID: 39722100. https://pubmed.ncbi.nlm.nih.gov/39722100/. Accessed 8 Apr. 2025.