Sources

Every page here answers one question, and the answer comes first. Every number is quoted word for word from a page published by the American Academy of Pediatrics (HealthyChildren.org), the CDC or the NHS, with a link to that page, the page's own date and the date we last checked it. A page says when a pediatric reviewer has signed it, and says so plainly when one has not.

More on who writes these pages and why: About.

AAP / HealthyChildren.org

Pages we quote from AAP / HealthyChildren.org
ID	Title	Page date	Checked on	Cited by
AAP-1	How Often and How Much Should Your Baby Eat?	updated 2024-04-02	October 18, 2026	How often should a newborn eat? How often should a baby eat from 1 to 4 months?
AAP-2	Amount and Schedule of Baby Formula Feedings	updated 2022-05-16	October 18, 2026	How often should a baby eat from 1 to 4 months?
AAP-EMS	When to Call Emergency Medical Services (EMS)	May 11, 2026	October 23, 2026	What should I do if my baby has a seizure?
AAP-FEV	Fever: When to Call the Pediatrician	December 2, 2022	October 23, 2026	What counts as a fever in a baby under 3 months? What fever is too high for a 3- to 6-month-old?
AAP-JAU	Jaundice	August 8, 2024	October 23, 2026	Is it normal for a newborn to look yellow in the first 24 hours?
AAP-SC-APP	Symptom Checker: Newborn Appearance Questions	undated	October 23, 2026	What does a bulging soft spot on a baby's head mean?
AAP-SC-BF	Symptom Checker: Breast-Feeding Questions	undated	October 23, 2026	How long can a baby go without feeding before I should call the doctor? How many hours without a wet diaper is too long for a baby?
AAP-SC-BLD	Symptom Checker: Stools - Blood In	undated	October 23, 2026	What should I do if there is blood in my baby's stool?
AAP-SC-ILL	Symptom Checker: Newborn Illness - How to Recognize	undated	October 23, 2026	What should I do if my baby is very hard to wake or floppy?
AAP-SC-NB	Symptom Checker: Newborn Reflexes and Behavior	undated	October 23, 2026	What should I do if my baby's lips or skin turn blue, gray or blotchy? What should I do if my baby is struggling to breathe or pauses breathing?
AAP-VOM	Infant Vomiting	December 29, 2024	October 23, 2026	What should I do if my baby vomits green or blood?

CDC

Pages we quote from CDC
ID	Title	Page date	Checked on	Cited by
CDC-1	How Much and How Often to Breastfeed	April 16, 2026	October 18, 2026	How often should a baby eat from 1 to 4 months?
CDC-2	How Much and How Often to Feed Infant Formula	April 21, 2026	October 18, 2026	How often should a newborn eat?

NHS (UK)

Pages we quote from NHS (UK)
ID	Title	Page date	Checked on	Cited by
NHS-DEH	Dehydration	May 1, 2026	October 23, 2026	How many hours without a wet diaper is too long for a baby?
NHS-FEV	Fever in children	January 3, 2024	October 23, 2026	What fever is too high for a 3- to 6-month-old?
NHS-MEN	Meningitis: symptoms	June 12, 2026	October 23, 2026	What is the glass test for a rash on a baby?
NHS-U5	When to get urgent medical help for babies and children under 5	August 6, 2026	October 23, 2026	What should I do if my baby's lips or skin turn blue, gray or blotchy? What should I do if my baby is struggling to breathe or pauses breathing? What should I do if my baby is very hard to wake or floppy? What should I do if my baby has a seizure? How long can a baby go without feeding before I should call the doctor? How many hours without a wet diaper is too long for a baby? What should I do if my baby vomits green or blood? What does a bulging soft spot on a baby's head mean?