The first month of a baby’s life is a period of rapid adjustment — for the baby and for the parents. Everything is new. Every sound, every expression, every bodily function prompts a question: is this normal?
Most of the time, the answer is yes. But there are specific signs in the first 30 days that do require prompt medical attention.
The First Week: What to Expect
Weight Loss After Birth
Almost every newborn loses weight in the first few days — typically 5–7% of their birth weight by day 3–4. This is normal and expected. Full-term babies should regain their birth weight by day 10–14. Weight loss beyond 10% of birth weight warrants a review — usually a feeding issue that is entirely addressable.
Meconium and First Stools
The first stool — dark, sticky, and almost black — is called meconium. Most babies pass it within the first 24–48 hours. After meconium clears (usually by day 3–4), stools transition to a yellow-green, seedy consistency in breastfed babies.
Feeding Patterns
A newborn’s stomach is very small — roughly the size of a marble at birth. Breastfed babies typically feed 8–12 times in 24 hours. A baby is feeding well if they: wake on their own for feeds, feed actively (with audible swallowing), produce 6–8 wet nappies in 24 hours by day 4–5, and gain weight after the initial dip.
Weeks 2–4: What Changes and What to Watch
Sleep Patterns — Normal Chaos
Most newborns sleep 16–18 hours in 24 hours, but in short cycles of 2–4 hours. The circadian rhythm does not develop until around 3–4 months. Expecting a one-month-old to sleep through the night is not physiologically realistic.
Crying — How Much Is Too Much?
The average newborn cries for 1–3 hours per day in the first few weeks. Crying becomes a concern when it is prolonged (more than 3 hours per day), accompanied by a high-pitched tone, associated with poor feeding, or combined with fever.
Skin Changes — What’s Normal
- Milia — Tiny white bumps on nose/chin. Blocked sebaceous glands. Resolve without treatment.
- Baby acne — Red/white pimples at weeks 2–4. Normal hormonal response. Do not apply creams.
- Peeling skin — Very common in first 1–2 weeks. The skin adapts from the aquatic womb environment.
- Mongolian spots — Blue-grey flat patches, common in darker-skinned babies. Completely benign.
⚠️ Red Flags — Call Your Paediatrician Immediately
- Fever above 38°C in a baby under 3 months — always urgent
- Persistent vomiting or projectile vomiting
- Refusal to feed for more than 4–6 hours
- Fewer than 6 wet nappies in 24 hours after day 5
- Breathing that is fast, laboured, or with nostril flaring
- A bluish tint around the lips or fingertips
- Difficulty waking or unusual limpness
- Inconsolable crying lasting more than 3 hours
Newborn Check-Ups — What to Expect
Most paediatricians recommend two check-ups in the first month: one within the first week (often day 3–5 to check weight and jaundice), and one at the 4-week mark. At these visits, your doctor will assess weight gain, feeding, reflexes, hip and heart examination, and developmental progress.
“When in doubt, ask your paediatrician. There is no such thing as a question too small or a concern too minor in the first month of life.” — Dr. Diggikar