At what month does a new born head fully develop

The development of a newborn's head is a gradual process that occurs throughout pregnancy. By the time a baby is born, their head is already well-developed, but it will continue to grow and mature in the first few months after birth.

Here's a rough timeline of the development of a newborn's head:

• By the 12th week of pregnancy (around 3 months), the baby's head begins to take shape, with the formation of the skull bones and the development of the brain.
• By the 20th week of pregnancy (around 5 months), the baby's head is more rounded and the skull bones are fully formed.
• By the 28th week of pregnancy (around 7 months), the baby's head is almost fully developed, with the brain and skull bones fully formed and the fontanelles (soft spots on the top of the head) starting to close.
• By the time a baby is born, their head is fully developed, but it will continue to grow and mature in the first few months after birth.

In terms of specific milestones, here are some key developments that occur in the first few months after birth:

• At birth, the fontanelles are typically around 1-2 cm (0.4-0.8 in) in diameter. By 2-3 months, they usually start to close, and by 6-9 months, they are usually fully closed.
• By 2-3 months, the baby's head is usually more rounded and the skull bones are more firmly attached.
• By 4-6 months, the baby's head is usually fully developed, with the brain and skull bones fully formed and the fontanelles fully closed.

It's worth noting that every baby develops at their own pace, and some may develop more quickly or slowly than others. If you have concerns about your baby's development, it's always best to consult with your pediatrician.