Development & Play · 4–6 months
When Do Babies Sit Up? The Typical Timeline and How to Help
Most babies sit up on their own around 6 months, and healthy babies start anywhere from about 4 to 9 months (WHO).…
Your baby, by age
4–6 months
Rolling, reaching, laughing, and getting ready for first foods.
Development & play
Development & Play · 4–6 months
Reading to Your Baby: When to Start, What to Read, and Why It Matters
Start reading to your baby from birth: the AAP encourages shared reading from day one, a few minutes at a time, ideally…
Development & Play · 4–6 months
When Do Babies Start Talking? Language Milestones and How to Help
Most babies coo by 4 months, babble "mamamama" by 9 months, and call a parent "mama" or "dada" by 12 months. By…
Sleep
Sleep · 4–6 months
When to Stop Swaddling: Signs, AAP Advice, and How to Switch
Stop swaddling as soon as your baby shows signs of trying to roll, which can start as early as 2 months. Then…
Sleep · 4–6 months
Is It Safe for a Baby to Sleep in a Swing, Car Seat, or Bouncer?
Not for routine sleep. The AAP, NIH, and CPSC say swings, bouncers, rockers, and car seats outside the car aren't safe sleep…
Sleep · 4–6 months
When Can a Baby Sleep With a Blanket, Pillow, or Stuffed Animal?
Keep blankets, pillows, and stuffed animals out of the crib until at least 12 months. After that, a special blanket or soft…
Feeding
Feeding · 4–6 months
Baby Constipation After Starting Solids: Signs and What Helps
Constipation is common when babies start solids and means hard, pebble-like stools that hurt to pass, not just fewer poops. Puréed prunes…
Feeding · 4–6 months
Iron-Rich First Foods for Babies: What to Offer from 6 Months
From about 6 months, offer an iron-rich food at every meal: meat, poultry, fish, well-cooked eggs, iron-fortified infant cereal, lentils, beans, or…
Feeding · 4–6 months
Baby-Led Weaning vs. Purées: What the Research Actually Says
Both work. In the best trial so far, modified baby-led weaning and spoon-fed purées had the same choking rates, iron levels, and…
Everything for this age
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Baby Fever: When to Worry and When to Call the Doctor
A fever is 38°C (100.4°F) or higher, and in a baby under 3 months it always means calling the doctor…
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Baby Constipation After Starting Solids: Signs and What Helps
Constipation is common when babies start solids and means hard, pebble-like stools that hurt to pass, not just fewer poops.…
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Teething Symptoms: Real Signs, Myths, and What Actually Helps
Common teething symptoms are drooling, sore gums, chewing, and fussiness, sometimes with a slightly raised temperature. Teething doesn’t cause a…
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When Do Babies Sit Up? The Typical Timeline and How to Help
Most babies sit up on their own around 6 months, and healthy babies start anywhere from about 4 to 9…
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When to Stop Swaddling: Signs, AAP Advice, and How to Switch
Stop swaddling as soon as your baby shows signs of trying to roll, which can start as early as 2…
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Is It Safe for a Baby to Sleep in a Swing, Car Seat, or Bouncer?
Not for routine sleep. The AAP, NIH, and CPSC say swings, bouncers, rockers, and car seats outside the car aren’t…
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Iron-Rich First Foods for Babies: What to Offer from 6 Months
From about 6 months, offer an iron-rich food at every meal: meat, poultry, fish, well-cooked eggs, iron-fortified infant cereal, lentils,…
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Baby-Led Weaning vs. Purées: What the Research Actually Says
Both work. In the best trial so far, modified baby-led weaning and spoon-fed purées had the same choking rates, iron…
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Reading to Your Baby: When to Start, What to Read, and Why It Matters
Start reading to your baby from birth: the AAP encourages shared reading from day one, a few minutes at a…
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When Do Babies Start Talking? Language Milestones and How to Help
Most babies coo by 4 months, babble “mamamama” by 9 months, and call a parent “mama” or “dada” by 12…