
The fifth month is when the motor skills that began in month four are consolidated. The baby now controls their own body better.
What to expect this month
Movement
- Rolling both ways (back to tummy and back again)
- Sitting with support or while being held
- Catching the feet and bringing them to the mouth
- Beginning to pass an object from one hand to the other
Social and language
- Starting to respond to their name
- Telling emotion from tone of voice: pausing at a sharp tone
- Vocal responses in front of a mirror
- Holding out the arms to a familiar person
Feeding
The general advice is to wait for month 6. In some babies, with a doctor's assessment, solids may begin at the end of month 5. Three things are considered in that decision: the weight-gain curve, full head control, and being able to sit with support.
Breast milk remains the main food this month too; even once solids begin, they are added alongside it, not in place of it. Vitamin D is continued.
Sleep
Total sleep drops to around 12-15 hours. Daytime naps start reducing to 2-3. Teething discomfort can break up sleep in these months.
This month's vaccinations
There is no vaccine at month 5 in the national schedule. The next group is given at 6 months.
When to see a doctor
- If the baby cannot roll in any direction
- If holding the head upright is difficult even with support
- If objects cannot be grasped or passed from hand to hand
- If there is no response to their name or to sounds
- If smiling and vocalising have decreased
Previous month: 4-month-old baby development · Next month: 6-month-old baby development
Frequently Asked Questions
Most babies can sit this month with support, with cushions, or while being held. Sitting without support usually develops between 6 and 8 months. Rather than propping a baby up for long periods, time spent playing on the tummy does more for muscle development.
The general advice is to wait for month 6. In some babies a doctor may agree to start at the end of month 5; that decision is based on weight gain, head control and being able to sit with support.
There is no vaccine scheduled for month 5 in the national schedule. The next group of vaccines is given at 6 months.
Yes. At this age the mouth is the most sensitive organ a baby uses to get to know objects. What matters is keeping small, swallowable items out of reach.
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