Dear Jess: Surviving the Baby in Yellow Phase (And Other Shocks)

Dear Jess from six months ago,

You're currently sitting on the peeling linoleum of the downstairs bathroom at 3 AM, holding your three-day-old up to the harsh vanity lights, trying to figure out if you're sleep-deprived and hallucinating or if your child has actually turned the color of a Post-it note. Your coffee is cold, your nursing bra is soaked, and you're officially spiraling. I know exactly how you feel, because I'm you, just a little further down this chaotic road of raising three kids under five here in rural Texas.

I'm just gonna be real with you—put the phone down before you completely lose your mind. You've got your screen balanced on the edge of the sink, frantically typing things into Google, and somehow the internet thinks you're looking for that creepy viral video game. Because of course, when a panicked mother is trying to figure out her infant's health at dawn, the algorithm serves up YouTube videos for the baby in yellow free game. Seriously, who makes a horror game about a demon infant when actual, real-life parenthood is scary enough on its own? You don't need jump scares, honey. You just need to know why your little one looks like a human highlighter.

Baby, I promise you, it's going to be okay. But since I know you won't actually sleep until you've some answers, let me tell you everything I wish we had known before we panicked ourselves into a puddle.

That glowing skin phase

Let's talk about the oldest for a second, bless his heart. He was my cautionary tale for literally everything. When he was born, I swear he looked like a minor character from The Simpsons. We didn't even notice it right away because hospital lighting makes everyone look like they've been living in a cave, but once we got him home to the Texas sunshine, it was undeniable.

My doctor—who has the patience of a saint for putting up with my constant voicemails—told me this newborn jaundice thing happens to like, six out of ten babies. Apparently, their little livers are just on vacation those first few days and haven't figured out how to process this chemical called bilirubin. It's supposed to happen naturally when red blood cells break down, but the baby's system is basically a rusty dial-up modem trying to download a massive file. It just gets backed up, and boom, your baby looks yellow.

My grandma always said to just stick them in the window like a houseplant, which I used to roll my eyes at, but the doctor actually agreed with her. Sort of. The doctor told me to strip him down to his diaper and let him lay in the indirect natural light by the glass door, while also feeding him around the clock because apparently, the only way that yellow color leaves the body is through dirty diapers.

We spent hours on the living room floor doing this. If you're going to be camped out by a window all day, you absolutely need the Bamboo Baby Blanket Universe Pattern from Kianao. I'm not even exaggerating when I say this is my favorite thing we own. Ordinary cotton blankets make my kids sweat like they're running a marathon, but this bamboo blend is like a magical climate-controlled cloud. I used to lay it out on the rug right where the sunbeams hit, and the little yellow planets on the pattern almost matched his skin tone. It's wildly soft, washes beautifully, and didn't irritate his sensitive newborn skin while he was doing his daily light therapy. It's honestly worth every single penny of the budget, and I don't say that lightly.

Now, I'm no medical expert and my understanding of liver enzymes is sketchy at best, but I do know there's a big difference between normal yellow and danger yellow. Here's what my doctor told me to honestly look out for, scribbled hastily on a pharmacy receipt:

• If the jaundice shows up on the very first day of life, don't wait around, just go straight to the clinic.
• If the baby is so sleepy you literally can't wake them up to eat.
• If their poop is pale white or grey instead of normal baby colors.
• If they've a fever or their cry sounds super high-pitched and weird.

Otherwise, just keep feeding that baby and staring at their eyeballs in the daylight to see if the whites are clearing up.

The mustard diaper situation

Since we're on the glamorous topic of things coming out of your baby, let's address the other yellow panic. You finally get the jaundice cleared up, you're feeling like a competent mother, and then you change a diaper in the HEB parking lot and discover what looks exactly like fancy Dijon mustard.

It's seedy, it's bright yellow, it smells bizarrely sweet, and there's so much of it. I remember the first time our oldest had a blowout so catastrophic it ruined his entire outfit, the car seat insert, and somehow my favorite jeans. I almost drove straight to the emergency room because I thought his insides were dissolving.

Turns out, that bright yellow, curdy mess is the absolute gold standard for a breastfed baby. It means everything is working perfectly. Formula-fed babies have more of a tan, peanut-butter situation going on, which is also totally fine, but that neon yellow breastmilk poop is practically a badge of honor. I spent three full paragraphs ranting about this to my mom group last week because nobody warns you that your life is about to revolve around analyzing the color wheel of human waste.

If you're dealing with the messy reality of infant digestion, do yourself a favor and stock up on some organic baby essentials that can really survive a hot water wash cycle, because you're going to be doing laundry like it's an Olympic sport. Just throw whatever gets ruined in the wash with some enzyme cleaner and pray for the best.

When the big teeth look like butter

Fast forward a few years from that infant stage, and past Jess, I've another shock waiting for you. Just when you think you're done dealing with weird yellow body parts, your oldest is going to start losing his baby teeth. It's a huge milestone, you'll put the dollar under the pillow, take a million pictures, and then his new adult teeth will start erupting.

And you'll panic all over again.

Because next to those tiny, perfectly opaque, Chiclet-white baby teeth, the brand new adult teeth look aggressively yellow. I literally cornered our pediatric dentist in the grocery store aisle because I thought I had ruined his permanent teeth by letting him drink too much apple juice.

The dentist laughed at me and explained some complicated anatomy thing that basically boils down to this: adult teeth have a thicker layer of dentin under the surface. Dentin is naturally yellowish. The enamel on adult teeth is also more translucent than baby teeth, so that yellow core just shines right through. It's an optical illusion that makes them look stained when they're genuinely perfectly healthy.

My panic usually happens in three distinct stages when dealing with my kids' teeth:

1. Spotting the new tooth and thinking it looks weirdly large and colored like sweet corn.
2. Frantically scrubbing their mouth with a toothbrush while they scream and try to bite me.
3. Googling dental diseases until my husband tells me to go to bed.

Speaking of teeth, we did try the Kianao Handmade Wood & Silicone Teether Ring for the middle child when she was getting her molars. It's... just okay, to be totally honest. It's gorgeous, and I love that it's untreated beechwood and free of all those toxic plastic chemicals, but our golden retriever immediately thought it was a new chew toy just for him. Plus, it's a little heavy for a really young baby. It works great for older infants who have the grip strength of a tiny wrestler, but for early teething, I'd probably stick to something lighter. Still, it looks incredibly aesthetic sitting on the coffee table right before the dog tries to steal it again.

Deep breaths on the bathroom floor

So, past Jess, just take a deep breath. Stop searching the internet for "the baby in yellow" unless you want to be haunted by video game screenshots, and trust your gut. The jaundice will fade as long as you keep feeding them in the sunlight. The mustard diapers are a sign of a healthy gut. The yellow adult teeth are just biology playing a mean trick on your mom-anxiety.

You're doing a great job, even when you feel like you're fumbling in the dark. Now go wash your face, put that baby back to sleep, and maybe buy yourself a little something to make this whole parenting gig easier. If you need some genuinely safe, chemical-free gear that won't make your anxiety worse, shop Kianao's full collection here before the baby wakes up again.

Mom-to-Mom FAQ

How long does this newborn jaundice seriously last?
Usually, it peaks around day three or four and fades out over a week or two. My doctor said if it's hanging around past two weeks, they want to take another look just to be safe. But for most kids, it just quietly goes away as they eat more and process that bilirubin stuff.

Is the sunlight trick a real medical thing or an old wives' tale?
It's a bit of both, honestly! Real medical light therapy uses those special blue hospital blankets, but sitting them in indirect sunlight by a window does help break down the jaundice. Just don't put them in direct, blazing sun—they're babies, not solar panels, and they'll burn in two seconds.

My baby's poop is bright yellow and looks like it has seeds in it. Is that diarrhea?
Nope, that's exactly what breastfed baby poop is supposed to look like! It's wild, I know. It's totally liquid and looks like mustard. As long as it's not accompanied by a fever or signs of dehydration, you just have a normal, very messy baby.

Can I use regular teeth whitening toothpaste on my kid's yellow adult teeth?
Absolutely not, please don't do this! The dentist specifically warned me that their enamel is still settling and whitening pastes are way too abrasive. You'll just damage the tooth. The yellow contrast gets much less noticeable once the rest of the baby teeth fall out anyway.

Why does searching my baby's things to watch for bring up a horror game?
Because the internet is a chaotic place. "The Baby in Yellow" is a wildly popular indie horror game where you babysit a demon infant. It has nothing to do with medical jaundice. Save your sanity and always add "medical" or "pediatric" to your search terms, or better yet, just call the nurse's line and talk to a real human.