What is Jaundice in Babies? Surviving the Tiny Satsuma Phase

It was day three with the twins, and I was standing by our bedroom window in the bleak gray wash of a London November afternoon, holding Florence up to the light like a counterfeit twenty-pound note. She was asleep, completely oblivious to the fact that over the last twelve hours, she had slowly transformed into a Simpsons character. Not her whole body, mind you. Just her face and the whites of her eyes, giving her the distinct aura of a tiny, furious satsuma.

I nudged my wife, who was currently pinned beneath Mathilda (our other twin, who was perfectly pink and round and making me deeply suspicious by comparison). "Is Florence... orange?" I whispered, afraid that speaking at normal volume might wake the satsuma and demand a feed.

My wife squinted through the gloom. "She's glowing."

In a state of sheer, unadulterated first-time-parent panic, I grabbed my phone with one hand and frantically typed "why is my babi yellow" into the search bar. The typo "yellow babie" still lives on in my browser history, a permanent monument to my sleep deprivation. The internet, as it always does at 4 am, immediately suggested we were doomed. But when our health visitor arrived the next morning, smelling of strong tea and practical footwear, she took one look at our highlighter-tinted daughter and sighed the long, heavy sigh of a woman who has seen ten thousand yellow newborns.

The counterfeit money inspection

Our health visitor sat me down and taught me the "press test," which is exactly what it sounds like, though it feels incredibly unnatural to poke your fragile new child. You press your finger gently onto their nose or their forehead (where the bone is right under the skin), and when you lift your finger, you watch what the skin does. If it looks pale for a second, fantastic. If it looks distinctly yellow before the blood rushes back, you've got yourself a jaundiced infant.

Because Florence is biracial, the health visitor explained that the yellow tint can sometimes be remarkably tricky to spot on darker skin tones, meaning the press test and checking the whites of her eyes were our best indicators. Mathilda, lying right next to her, passed the press test with flying colors. Florence failed it spectacularly. I spent the next forty-eight hours randomly poking my sleeping daughter's forehead like a nervous technician tapping a broken pressure gauge, just hoping the needle would drop.

A thoroughly unqualified biology lesson

So what actually causes this odd yellowing phase in our little ones? As our doctor explained it to me while I was desperately trying to stop my hands from shaking and spilling tepid hospital coffee all over her desk, it comes down to a lazy liver. It's all about bilirubin, which is a word I had never heard before but suddenly became the only thing I cared about.

Apparently, bilirubin is a yellow substance created when the body breaks down old red blood cells. In adults, your liver just filters it out and dumps it in your digestive tract. But newborn livers are like me before my first espresso—completely sluggish, confused, and prone to just letting the work pile up on the desk. Because the liver isn't filtering fast enough, the bilirubin builds up in the blood and literally stains the skin yellow.

Our doctor casually mentioned that roughly 60 percent of full-term babies get this normal, physiological type of jaundice. She also mumbled something complicated about breast milk jaundice—where certain proteins in the milk temporarily block the liver from clearing the bilirubin—but honestly, I tuned out halfway through because Florence had just done a massive, explosive poo and my brain could only handle one crisis at a time.

The absolute madness of the nappy tally

The cure for this completely normal but terrifying condition, it turns out, is the most exhausting thing you can possibly imagine when you haven't slept in four days. You have to feed them. Constantly. You'll find yourself trapped in a relentless cycle of waking a deeply lethargic baby to feed them eight to twelve times a day just to flush the bilirubin out of their system, while simultaneously maintaining a deeply unhinged spreadsheet of wet nappies and obsessing over their poop color.

The doctor said we needed to see at least six heavy, wet nappies in a 24-hour period, and we needed to watch the poop transition from that horrifying black, sticky meconium (which looks and acts exactly like roofing tar) to a lighter, seedy yellow. Bilirubin leaves the body through their waste, meaning my entire existence was suddenly reduced to begging a two-foot-long human to please just use the toilet.

Because I was checking her nappy approximately every fourteen seconds to log another tally mark on my chaotic bedside notepad, we basically lived in the Organic Cotton Baby Bodysuit Sleeveless Infant Onesie. Honestly, it was a lifeline. When you're doing your fortieth nappy change of the day and your hands have forgotten how to work, you need clothes that don't fight back. It has these brilliant envelope shoulders, which meant when the inevitable poonami finally happened (and we cheered, because poop meant the yellow was leaving), I could pull the whole garment down over her legs instead of dragging toxic waste over her head. The fabric is incredibly stretchy, which was brilliant for my clumsy, exhausted fingers, and soft enough that it didn't irritate her skin while I was constantly undressing her to check her chest under different lamps.

Please don't roast your children

During one of my midnight scrolling sessions, I stumbled into a forum where someone confidently stated that the best cure for a yellow newborn was to just stick them by the window in direct sunlight. I mentioned this to our health visitor the next day.

She looked at me as if I had suggested feeding Florence a pint of Guinness. She practically ordered us never to place our infant in direct sunlight to cure the yellowing, explaining with absolute severity that the sunburn risk is astronomical and that the medical community explicitly warns parents against this old wives' tale. Even if it did work, we live in London; the sun is just a theoretical concept we discuss in the pub during the summer months anyway.

If the bilirubin levels actually get dangerously high, doctors don't send you to the beach. They prescribe proper phototherapy—a highly controlled, special blue light that breaks down the bilirubin safely, sometimes done with a fancy glowing blanket at the hospital. We didn't end up needing it, but the threat of having to go back to the postnatal ward kept me rigidly adhering to the feeding schedule.

If you're currently pacing your living room floor, staring at a slightly tinted newborn and wondering if you're doing anything right, take a breath. It might help to distract yourself by browsing Kianao's organic clothing collection so your little one at least has something soft and breathable to wear while you obsessively monitor their changing skin tone.

Stress shopping and soft things

I won't lie to you—the anxiety of the satsuma phase made me cope in the only way modern parents know how: blindly buying things on the internet at 3 am to feel like I was taking action.

First, I bought the Bamboo Baby Blanket with Colorful Leaves. It's genuinely a beautiful piece of fabric, and the bamboo material is ridiculously smooth. I pictured swaddling Florence in it, hoping the delicate leaf pattern would somehow offset her aggressive citrus coloring. It was lovely for about two days, right up until the moment I completely ruined it by throwing it into a panicked 60-degree wash cycle after she covered it in spit-up. The fabric lost a bit of its magic after I boiled it. If you buy one, please read the care label and wash it cold, unlike me.

My second stress purchase was the Squirrel Teether Silicone Baby Gum Soother. Florence was four days old. She obviously didn't have teeth. She could barely open her eyes. But I was so tired and so desperate for something cheerful that I ordered this mint green squirrel simply because it looked friendly. It sat abandoned on her nursery shelf for a solid five months before she ever touched it, but I'll admit that once those tiny, jagged little incisors finally started breaking through, the textured acorn part of that squirrel became the only thing that stopped her from screaming the house down.

When to actually panic

The hardest part of the whole ordeal was knowing the difference between "normal yellow" and "drop everything and run to the car" yellow. The doctor told us to watch the progression. It starts at the head and moves down the body.

I was told that if the color stayed on her face and chest, we just keep feeding and wait it out. But if the yellow marched down below her belly button, or god forbid, below her knees, we were to go straight to A&E. We were also told to watch out for extreme lethargy—the kind where you literally can't wake them up to eat by stripping them down to their nappy or tickling their feet. If her body went weirdly stiff or floppy, or if she developed a high-pitched cry that didn't sound like her normal wails, we were to seek immediate medical help. Untreated, skyrocketing bilirubin can cause some truly terrifying brain complications, though our doctor was quick to remind my hyperventilating self that severe complications are incredibly rare.

In the end, we just waited. We tracked the wet nappies. We celebrated every seedy yellow poop like our football team had just won the cup. And then, somewhere around day ten, I held Florence up to the dreary London light by the window, and she was just... pale. The orange hue had evaporated. The whites of her eyes were honestly white. The satsuma phase was over, leaving us with a regular, incredibly demanding infant who still refused to sleep, but at least she was the right color.

Ready to stop Googling every minor skin discoloration and stock up on the gear that really makes those grueling first few weeks slightly easier? Go check out the Kianao baby accessories and find something that takes the edge off.

Frequently Asked Questions About the Satsuma Phase

How can I tell if my baby has jaundice if they've dark skin?

This was exactly our issue with Florence. The standard skin-check isn't always reliable depending on their skin tone. Our health visitor told us to gently press on her nose or chest to see if the skin underneath looked yellowish when the blood was pushed away. We also obsessively checked the whites of her eyes and the inside of her mouth, which tend to show the yellow tint much more clearly regardless of skin color.

Is it true I should put my baby in the sun to cure the yellowing?

Absolutely not. My doctor almost jumped over her desk when I asked this. Direct sunlight is not a medical treatment for a newborn, and the risk of giving your days-old infant a severe sunburn completely outweighs any mythological benefits. If they honestly need light therapy, doctors will use very specific, controlled medical blue lights that won't roast them.

Why is feeding so important for clearing the bilirubin?

Because the liver is being slow and lazy, the only way the bilirubin genuinely exits your baby's body is through their waste. You have to feed them constantly (like, 8 to 12 times a day) so they pee and poop it all out. If they don't eat, they don't poop, and the yellow just recirculates. Prepare yourself to become intimately familiar with the exact volume of their wet nappies.

Should I stop breastfeeding if my baby is yellow?

The NHS midwife we saw explicitly told us to keep going, just more frequently. While there's a thing called "breast milk jaundice" where the milk proteins temporarily interfere with liver function, it's generally harmless. The real danger is them getting dehydrated because they aren't latching well, which concentrates the bilirubin. Just keep feeding them, and if you're struggling with the latch, bother the lactation consultants at the hospital until they help you.

When does the yellow color usually go away?

For us, the peak of the panic was around days three and four, and it slowly faded out by the end of week two. For some breastfed babies, a very mild yellow tint can linger for a few weeks. But if it suddenly gets worse, spikes dramatically, or travels down their legs, you stop reading articles on the internet and call your doctor immediately.