17 Weird (But Normal) Things About Newborn Babies - Baby Chick
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17 Weird (But Normal) Things About Newborn Babies

A board-certified pediatrician shares the weird (but normal) things that happen to newborn babies, from bruises to peeling skin to blue hands.

Updated July 15, 2024

by Dr. Mona Amin

Board-Certified Pediatrician
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Newborn babies are cute, cuddly, and smell AMAZING. But they don’t come with a manual, and sometimes, the nurses or doctors at the hospital will forget to tell you about these weird but normal things that happen in a newborn baby. It’s not until you’re home and it’s 2 a.m. that you can find yourself asking, “Is this normal?!”

17 Weird (But Normal) Things About Newborns

As a pediatrician, people often ask about the weird things newborns do that shock their parents. Rest assured, these things are absolutely common and normal:

1. What Are All These Spots on Their Face?

Baby acne. This usually develops in the first six weeks due to hormones from mom. It’s usually located on the cheeks and nose. It’s best to do nothing, as it will go away independently, and some products can irritate the skin and make the acne worse. Speak to a pediatrician if it’s very severe or lasts beyond a few months.1 We sometimes recommend topical ointments to prevent scarring.10 In most babies, less is more; it will go away one day like nothing happened.1

2. What’s on Their Scalp?

Cradle cap. These are greasy scales on the scalp or eyebrows. Cradle cap is thought to be caused by hormones.2 It will typically go away on its own, but you can use coconut oil on the scalp and then comb with a soft brush.2,11

3. Are Those Bruises?

Those are dermal melanocytosis (formerly known as Mongolian spots).3 They’re darker spots that look like bruises but are a common skin condition in babies.12,13 They commonly appear on the sacrum area, the thighs, the back, or sometimes the arms and chest.3,13,14 These spots go away on their own, yet some people can have them slightly there in adulthood.3,13,14 They’re more common in people with melanin in their skin and are nothing to be concerned about.14

4. Why Is Their Skin Peeling So Much?

Your baby was in a water environment for nine months, and they come out dry and eventually have peeling skin! There’s nothing to do — it will peel off. If it’s cosmetically bothersome to you, you can use non-fragranced baby lotion or ointment. But it will all come off like a snake shedding its skin, leaving smooth skin.15

5. What Are These Tremors?

Newborns have many jerky movements.16 When startled, they will jerk. When sleeping, they will jerk.17 Speak to a clinician if you notice rhythmic jerking with eye-rolling and/or jerking that doesn’t stop when you hold the extremity.18

6. Why Are Their Hands Blue?

This is called acrocyanosis. It’s common due to normal limited blood flow to the area.4 Luckily, this self-resolves!19 Your baby’s feet can also be blue.4 They’re not necessarily cold, so there’s no need to use mittens. (Though I do like onesies, as nobody wants to sleep with cold feet.) Please let a clinician know if there’s blueness on your baby’s face or chest.

7. Why Do They Snore Like a Grandpa?

Newborns will grunt A LOT and make whimpers and sounds while they sleep. They breathe through their nose (obligate nose breathers), which can mean a very musical sleep. Totally normal!20 If baby is awake and in distress (you see the ribs retracting fast and/or with any color change), speak to a clinician.21 Always put them in a safe sleep environment if you’re not watching them 100%. Otherwise, there’s no need to hover over them while they sleep (but I know you may anyway, #parentlife!).

8. Why Do They Breathe Fast and Then Slow?

This is called periodic breathing. However, rest assured that they’re breathing fine throughout.5 A more advanced breathing pattern will come. Speak to a clinician if they’re breathing constantly fast (rapid, rapid, and more rapid) with any color change or ribs retracting quickly in and out.21

9. Should I Give Them Water for These Hiccups?

No. Hiccups are common, especially if you felt this in utero! Don’t startle them or make them drink water, as you do for adults. It will go away on its own. You may notice it’s more prominent around feeding times because the nerve that goes down to the diaphragm can become irritated during feeding, causing the hiccup — no need to do anything differently.22

10. Are They Cross-Eyed?

This is normal and has a lot to do with their flat noses and newborn anatomy.23 If cross-eyes persist past six months, or one eye is worse than the other, and/or baby isn’t tracking objects by 2 months old, speak to a clinician.24

11. Why Do They Have Bumps on the Base of Their Skull?

These are likely occipital lymph nodes.6 They should be small and mobile (like tiny marbles). If they’re large and fixed, let a clinician know.25

12. Why Does Their Eye Have Discharge?

A blocked tear duct is likely the cause of this.26 You can gently wipe away the mucus and massage the inner eye with your clean finger or Q-tip.26,27 If it’s associated with bright redness in the eye or persists past 1 year of age, speak to a clinician.27

13. They’re Constantly Sneezing! Are They Sick?

Babies commonly sneeze.28 This is more common in C-section babies since they didn’t have the pressure of the vaginal canal to squeeze out any fluid from in utero. If baby seems congested and bothered, use saline and suction — otherwise, monitor them.29 Of course, if they appear unwell or have a fever over 100.4 F, let your clinician know!29,30

14. Why Does My Baby Have Breast Buds?

If you feel your newborn’s nipples, you may feel breast buds!31 Don’t worry; they’re not going through puberty. This is actually common. Try not to touch them or play with them. Let them be!31

15. Does My Baby Girl Have a Period?

Vaginal bleeding is very common in newborn girls and may also have some mucous.7 It’s thought to be from maternal hormones, mimicking almost a mini period. Also common is vaginal discharge — and it’s all benign.7

16. Why Are My Son’s Testicles Large?

This is called a hydrocele (fluid in the testicle) and is common.8 Your child’s clinician may shine a light through it to confirm the diagnosis, but it goes away on its own. If you notice large testicles that suddenly develop, please speak to your clinician.

17. What Is All This Brick-Colored Dust in Their Diaper?

These are called urate crystals and are very common initially as feeding is established.9 It’s residue from the lining of the bladder and should go away. If baby is poorly feeding and you see this, speak to a clinician. But, if they’re doing well with feedings and making wet diapers, monitor them.32

All these weird things are super common (and normal) in a newborn baby! However, you can always ask your pediatrician if you’re feeling concerned. You may bring up the concerns at routine check-ups or call the nursing line if you’re very worried. They’ll be happy to reassure you if needed!

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A woman wearing medical scrubs and black sneakers sits on outdoor steps in front of a modern building with large windows and white walls. She is smiling and resting her head on her hand, with a stethoscope around her neck.
Dr. Mona Amin Board-Certified Pediatrician
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Dr. Mona Amin is a mom, Board Certified Pediatrician, and founder of “The New Mom’s Survival Guide” educating new parents on how to navigate baby’s first year. She has also… Read more

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