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Blood Draws in Babies and Children: What to Expect

A pediatric blood draw worries parents more than kids. Heel stick vs. venipuncture, proven ways to ease pain and fear, and how to prep a blood test for kids.

Published July 18, 202610 min readWritten by the Blood Analysis Team · Reviewed and verified by Julien Priour

A pediatric blood draw often frightens the parent more than the child. Here is the reassuring truth: the technique is matched to your child's age, and the pain can be prevented very effectively — a few drops of sugar water and sucking for infants, numbing cream and distraction for older kids. This guide walks through how a blood test for kids actually works at each age, the methods that genuinely reduce pain and fear, how to prepare your child, what you can do during the draw, and when results come back. It builds on our general guide to how a blood draw works.

Key takeaways

  • In newborns, blood is often taken from the heel (a heel stick), especially for the newborn screening done in the first days of life.12
  • In infants and older children, blood is usually taken from a vein (inner elbow or back of the hand).3
  • Fear of needles is normal and common in children — it can be prepared for and managed, and it eases with age.4
  • Pain is preventable. For babies: sucrose (sugar water) plus sucking, or breastfeeding.56 For older kids: numbing cream (EMLA/LMX), comfort positioning, and distraction.78
  • A parent's calm presence and an honest explanation help enormously — and kids should never be held down against their will.7
  • Fasting? Rarely needed for children, and always kept short. Follow the lab's instructions.9

How a child's blood is drawn

The method depends on how old your child is and how much blood is needed.

Newborns (heel stick). In the first days of life, blood is usually collected as a capillary sample from the heel: the skin is warmed, a tiny lancet makes a quick prick, and a few drops are collected — often onto a special filter-paper card.2 This is how newborn screening works: a small heel-stick sample is checked for dozens of rare but treatable conditions, typically between 24 and 48 hours of age.110 Most babies feel only brief discomfort, and the tiny spot heals quickly with no scar.1

Infants and young children (venipuncture). When more blood is needed, or for children past the newborn period, blood is drawn from a vein — usually the inner elbow (antecubital) or the back of the hand.3 The person drawing blood (a phlebotomist) chooses the most accessible vein, sometimes using a smaller "butterfly" needle for little arms. For very small samples, a capillary fingerstick may be enough.2

Older children and teens. The technique is the same as for adults: a quick venipuncture at the inner elbow. A tourniquet is applied, the site is cleaned, the needle goes in for a few seconds, and one or more tubes are filled.3

In every case, the actual needle time is brief, and the draw is done by staff used to working with children.

Is that much blood safe? Parents often worry about the amount taken. The tubes look bigger than what they hold, and the volumes used for children are small and carefully limited — a child's body replaces the fluid quickly. Pediatric labs also use smaller tubes and combine tests onto a single draw whenever possible, so most kids give only what's genuinely needed.

Where to go. For routine tests, a lab or clinic experienced with children is ideal, where staff are trained in pediatric draws and have child-friendly tools like small needles and numbing options. For newborns, tricky veins, or repeat draws, a children's hospital or pediatric unit is often the better fit. If your child's arm has a "best" vein from a previous draw, mention it — it can save a second attempt.

Reducing pain and fear (what works)

Leading U.S. pediatric practice now treats pain and anxiety as something to prevent for every child, using a short menu of proven tools: topical anesthetic (numbing cream), sucrose or breastfeeding for infants, comfort positioning, and distraction.7 This matters beyond the moment: repeated, poorly managed needle pain in childhood can feed long-term needle fear and avoidance of care, so easing it now is an investment in your child's future comfort.4 Below is how those tools apply by age.

For babies and infants

  • Sucrose (sugar water) plus sucking. A small amount of concentrated sugar solution placed on the tongue, combined with sucking on a pacifier, measurably reduces the pain of a needle procedure in newborns — it is one of the best-studied comfort measures.5
  • Breastfeeding during the draw has a demonstrated pain-relieving effect and is an excellent option when available.6
  • Skin-to-skin ("kangaroo") care also reduces procedural pain in newborns and is easy to combine with the above.11
  • Swaddling, a calm voice, and gentle holding round out the comfort.

For toddlers and older children

  • Numbing cream (topical anesthetics such as EMLA or LMX) applied to the skin about 30 minutes before the draw lowers both pain and anxiety. Ask the lab or clinic ahead of time so there is time to apply it.78
  • Comfort positioning. Being held by a parent — a young child sitting upright on a parent's lap, chest-to-chest, rather than lying flat and restrained — helps the child feel safe and stay still. Being held calmly changes how the body processes pain signals; children should never be held down against their will.7
  • Distraction. A book, bubbles, a song, a favorite video, or a squeeze toy is highly effective, and works even better combined with numbing cream.8 Slow, deep "belly breathing" also helps older kids stay calm.9
  • Vibration/cold devices such as "Buzzy" (a small buzzing, cold device placed near the site) can reduce needle pain and are an option some clinics offer.12

How to prepare your child by age

Preparation should match your child's age and temperament.

  • Babies and toddlers. No advance explanation is needed. Focus on your own calm, timing (a fed, rested baby copes better), and comfort tools like feeding or a pacifier during the draw.
  • Preschoolers (roughly 3–5). Keep it simple and close to the moment — a long lead time only builds dread. Try a quick, honest line: "You'll feel a little pinch, like a quick poke, and then it's done." A short pretend play — "giving a shot" to a stuffed animal — can help.
  • School-age children. Explain honestly and answer questions. Offer small choices ("which arm?") to restore a sense of control, and plan a distraction together (a video queued up, a game).
  • Teens. Give them straightforward information and let them lead. Warn them that feeling briefly faint or lightheaded is common and passes quickly; lying down and slow breathing help.9

Two rules apply at every age: don't lie ("it won't hurt at all" breaks trust for next time), and don't over-warn (repeated worried reminders raise anxiety). Your steadiness sets the tone — kids read a parent's stress.7

A few practical touches make the day easier: dress your child in a short-sleeved shirt (or one with easy-to-push-up sleeves) so the arm is accessible, bring a comfort item (a favorite toy, blanket, or the queued-up video), and make sure your child is well hydrated unless fasting is required — good hydration makes veins easier to find and can mean fewer attempts.9 If numbing cream is an option, ask the lab in advance whether to apply it at home and how long before the appointment.

What parents can do during the draw

You are usually welcome to stay with your child for a blood test, and your presence is one of the strongest comfort tools available.9

  • Hold your child in a comfort position if they like being held — upright, chest-to-chest for little ones — so they feel secure and can stay still.7
  • Keep the comfort tool going: feed or offer sucrose/pacifier for babies; run the distraction (video, bubbles, counting, conversation) for older kids.58
  • Stay calm and matter-of-fact. A steady voice and relaxed body language reassure your child far more than repeated apologies.7
  • Speak up. If your child is very anxious, tell the phlebotomist — they can adjust (extra time, a different position, letting the numbing cream work).
  • Never force a hold-down. If things aren't working, it's okay to pause and reset.7

After the draw

The moment the needle is out, firm pressure on the site for a couple of minutes reduces bruising, followed by a small bandage.3 A little bruise at the puncture site is common and harmless, fading over a few days.9

Then comfort and praise your child — a hug, a kind word, a small reward, or a sticker helps them keep a neutral, even positive memory of the whole thing. Some kids feel briefly faint or lightheaded; sitting or lying down for a few minutes and a drink usually settles it.9

When do results come? For routine blood tests, results often reach your child's doctor within a day or two, though some specialized tests take longer. Newborn screening results are reported to your provider and the state program on their own timeline; you'll be contacted if any result needs follow-up.1 Your pediatrician will explain what the numbers mean in your child's context.

Frequently asked questions

How is blood drawn from a baby?
From the heel in newborns (a few drops, called a heel stick), and from a vein in infants and older children.23 Pain is prevented with sucrose plus sucking or breastfeeding in babies,56 and numbing cream plus distraction in older kids.7
Does a blood draw hurt a child?
It's a brief pinch, and the ways to ease it — sugar water, breastfeeding, numbing cream, comfort positioning, distraction — are effective and well proven.58 A well-prepared, well-supported child usually handles it far better than parents fear.
Does my child need to fast?
Usually not. Fasting is only required for certain tests and is kept short and age-appropriate — young children aren't fasted for long, and draws are often scheduled early in the morning.9 When a test like blood glucose needs it, follow the lab's instructions; see our guide to fasting before a blood test.
My child is terrified of needles — what can I do?
That's very common.4 Prepare honestly, ask about numbing cream, plan a distraction, use comfort positioning, and stay calm and present.7 Tell the phlebotomist about the anxiety so they can adapt. Needle fear tends to ease as children grow.4
Can a blood test tell the baby's sex during pregnancy?
Don't confuse two different things. That test (a cell-free DNA screen) is done on the pregnant parent's blood, not the baby's — it analyzes fetal DNA circulating in the mother's bloodstream, and is not a blood draw from your child.
What if they can't find a vein on the first try?
It happens, especially with small or wiggly children, and it isn't a sign anything is wrong. Staff may warm the arm, try the other side, or ask a colleague experienced in tricky pediatric draws. Staying calm, keeping your child comfortable and still, and good hydration beforehand all lower the odds of a repeat stick.9
Why does my newborn need a blood test for jaundice?
To measure bilirubin (see our bilirubin blood test guide) and confirm that newborn jaundice stays in a safe range. It's a routine, reassuring check.

Bottom line

A pediatric blood draw is matched to your child's age — a heel stick in newborns, a vein afterward.23 What matters most is that pain and fear are preventable: sucrose plus sucking or breastfeeding for babies,56 and numbing cream, comfort positioning, and distraction for older children,78 all wrapped in an honest explanation and a parent's calm presence. Fasting is rarely needed and always kept short. And a "blood test to learn the baby's sex" is done on the pregnant parent, not on your child — a common and understandable mix-up.

Sources

Official U.S. sources and peer-reviewed publications (PubMed) used for this guide:

Footnotes

  1. Baby's First Test (HRSA-funded newborn screening clearinghouse) — Newborn Screening Procedures. babysfirsttest.org ↩ ↩2 ↩3 ↩4

  2. MedlinePlus (NIH) — Capillary sample (heel stick / fingerstick). medlineplus.gov ↩ ↩2 ↩3 ↩4 ↩5

  3. MedlinePlus (U.S. National Library of Medicine, NIH) — Venipuncture. medlineplus.gov ↩ ↩2 ↩3 ↩4 ↩5 ↩6

  4. McLenon J, Rogers MAM. The fear of needles: A systematic review and meta-analysis. J Adv Nurs, 2019. PubMed · DOI ↩ ↩2 ↩3 ↩4

  5. Stevens B, Yamada J, Ohlsson A, Haliburton S, Shorkey A. Sucrose for analgesia in newborn infants undergoing painful procedures. Cochrane Database Syst Rev, 2016. PubMed · DOI ↩ ↩2 ↩3 ↩4 ↩5 ↩6

  6. Shah PS, Torgalkar R, Shah VS. Breastfeeding or breast milk for procedural pain in neonates. Cochrane Database Syst Rev, 2023. PubMed · DOI ↩ ↩2 ↩3 ↩4

  7. American Academy of Pediatrics, HealthyChildren.org — Taking Fear and Pain Out of Needles — for Your Child and You. healthychildren.org ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11 ↩12

  8. Suleman SK, Yahya N, Nilsson S, Enskär K. Comparative efficacy of pharmacological and non-pharmacological interventions for mitigating pain and anxiety associated with venipuncture: a randomised controlled trial. BMJ Paediatr Open, 2024. PubMed · DOI ↩ ↩2 ↩3 ↩4 ↩5 ↩6

  9. Nemours KidsHealth — Getting a Blood Test (for Parents). kidshealth.org ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9

  10. MedlinePlus (NIH) — Newborn Screening. medlineplus.gov ↩

  11. Johnston C, Campbell-Yeo M, Disher T, et al. Skin-to-skin care for procedural pain in neonates. Cochrane Database Syst Rev, 2017. PubMed · DOI ↩

  12. Haidar NA, Al Amri MH, Sendad NG, Toaimah FHS. Efficacy of Buzzy Device Versus EMLA Cream for Reducing Pain During Needle-Related Procedures in Children: A Randomized Controlled Trial. Pediatr Emerg Care, 2024. PubMed · DOI ↩

Medical disclaimer. This article is provided for informational and educational purposes only; it is not medical advice and does not replace a consultation. Reference ranges vary by laboratory and method: only your physician can interpret your results in your specific context.