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Everything on Little Route Lab, organised by topic.

Feeding

Breast-Milk Supply Questions: Signs and Who Decides — You cannot judge breast-milk supply from breast fullness, pumping output, one unsettled feed, or frequency alone.
Breastfeeding Latch Problems: Signs and Who Can Help — A painful latch, cracked or bleeding nipples, a flattened nipple after feeding, clicking, repeated slipping off, or no regular swallowing can signal a…
How to Clean and Sterilise Baby Bottles — Clean bottles and every removable part after every feed, then let everything air-dry completely. Cleaning comes before sanitising or sterilising. U.S.
Newborn Cluster Feeding: Meaning, Intake and Red Flags — Newborn cluster feeding means feeds grouped very close together for a period. The CDC says some breastfed babies feed hourly at times.
Combination Feeding: Breast and Bottle Without Guessing — Combination feeding means breastfeeding alongside bottles of expressed milk, infant formula, or both.
How Often a Newborn Feeds — Most newborns feed at least 8 to 12 times in 24 hours, often unevenly and sometimes in clusters.
How to Introduce Allergenic Foods to a Baby — Once a baby is ready for solid food, current CDC and NHS guidance does not recommend delaying foods simply because they commonly cause allergy.
Paced Bottle Feeding: A Calm, Responsive Method — Paced bottle feeding gives babies more control over flow: invite the baby to draw in the teat, keep the bottle almost horizontal and slightly tipped,…
Spit-Up and Vomiting: Telling Them Apart — Spit-up usually flows out easily, often with a burp; vomiting is more forceful.
How to Store Expressed Breast Milk Safely — Store expressed breast milk in a clean approved container, label it with the expression date, and follow the current limits for your country. U.S.
When Can Babies Start Solid Foods? Readiness and Safety — Most babies can start solid foods at about 6 months when they also show developmental readiness. The CDC says not before 4 months.

Baby Gear Safety

How to Buy a Used Stroller Safely — Buy a used stroller only after confirming exact identity, current manual, recall status, complete approved parts, and safe operation.
Check Recalls and Register Baby Gear — Check baby-gear recalls with the exact manufacturer, model, manufacture date or code, serial or lot details, and component identity from permanent labels.
Check Stroller Harnesses and Brakes — Check a stroller harness and brakes while the stroller is empty and fully locked open.
Choose Stroller Weather Accessories Safely — Use a stroller weather accessory only when the exact stroller maker approves it for that model, child setup, and attachment location.
How to Clean a Stroller by the Manual — Clean a stroller by exact model instructions. Photograph routing, remove only approved parts, lift loose debris, and use the stated products,…
Fit a Soft Baby Carrier Safely — Fit a soft baby carrier only within the exact child size and developmental conditions.
Know When to Retire a Stroller — Retire a stroller when safe use cannot be verified: unresolved recall, unknown identity, exceeded child limits, structural cracks or bends, failed fold…
Move a Sleeping Baby From a Stroller — When an infant falls asleep in a stroller, keep the restraint correctly buckled until you can stop in a safe place, then move the baby to an appropriate…
Pack a Diaper Bag for a Stroller Outing — Pack a stroller diaper bag for the specific child, route, duration, weather, feeding plan, and medical needs.
Prepare a Stroller for Air Travel — Prepare a stroller for air travel by checking the airline's current rules for gate, counter, or cabin handling, batteries, tags, bags, and claims.

Stroller Buying & Use

Check Travel-System Compatibility — Verify travel-system compatibility through the exact stroller, infant car seat, adapter, manufacture period, and approved frame configuration in current…
Double Stroller vs. Rider Board — Choose a double stroller when both children need approved seats and restraints; consider a rider board only when the older child meets every size,…
Choose a Stroller for Your Daily Routine — Choose a stroller by auditing your real routes: surfaces, curbs, stairs, transit, vehicle and home storage, weather, cargo, caregiver mobility, child…
How to Choose a Stroller for a Newborn — Choose a newborn stroller only when its exact manual approves the child in the specific seat, bassinet, or infant-car-seat configuration.
Choose Stroller Wheels for Your Terrain — Choose stroller wheels by mapping your actual surfaces and checking which terrain and activities the exact manual approves.
Full-Size vs. Compact Stroller — Choose between full-size and compact strollers by identifying the dominant constraint.
How to Read Stroller Limits and Labels — Read a stroller's permanent labels and current manual by exact manufacturer, model, and manufacture information.
Test a Stroller Fold Before Buying — Test a stroller fold with the child safely elsewhere and the stroller empty, using the exact approved seat and accessory configuration.
How to Use a Stroller Basket Safely — Use a stroller basket only within its own stated load and placement limits.
Use a Stroller on Public Transit — Use a stroller on public transit by checking the operator's current stroller and accessibility rules, lift status, platform gaps, boarding method,…

Health Concerns

Signs of Dehydration in a Baby — Possible dehydration signs include fewer or less-wet nappies, dry mouth, fewer tears, sunken eyes or soft spot, unusual irritability, or sleepiness.
Fever in Babies: What the Thresholds Are and When to Call — For a baby aged 3 months or younger, a rectal temperature of 100.4°F (38°C) or higher needs an immediate call to the pediatrician; local emergency routes…

Sleep

How Much Babies Sleep, By Age — Baby sleep varies widely by age and individual, so ranges are more useful than one required total.
Safe Sleep for Babies: What the Guidance Actually Says — Put a baby on their back for every sleep in their own clear sleep space on a firm, flat surface that does not indent or incline more than 10 degrees.

Development

Milestones in the First Year Are Ranges, Not Deadlines — Developmental milestones are observation ranges, not exact deadlines.
Tummy Time: How and When — Tummy time is supervised, awake play on the stomach and can begin from birth in short sessions when a caregiver is fully awake and watching.

Newborn Basics

Newborn Blood Spot Screening: England's Test and Results — In England, newborn blood spot screening checks for rare, serious conditions using a heel sample, routinely on day 5 (birth is day 0).
Newborn Hearing Screening: Results and Follow-Up — Newborn hearing screening results identify whether further hearing assessment is needed. They are not a diagnosis.
Newborn Physical Examination: The NHS Checks — The newborn physical examination checks your baby's body, including the eyes, heart, hips and, where applicable, testicles.
What Can Newborn Babies See? Vision and When to Call — Newborns see light, shapes, faces and movement, clearest about 8 to 12 inches away, according to the AAP. Your clinician assesses your baby.
The First Two Weeks: What Is Actually Normal — Newborn sleep, feeding, stools, skin colour, breathing patterns, and cord changes vary, so scheduled checks and feeding support matter.
Umbilical Cord Stump Care — Keep the cord stump clean and dry, fold the nappy below it, and let it separate on its own; do not pull it or routinely apply alcohol unless your…