First Month Newborn Growth And Development

You have just delivered your baby. Congratulations. Now the next step is to keep track of the newborn growth and development milestones to ensure your little bundle of joy is growing the way he should. The growth and development of a first month newborn revolve around his feeding and sleeping pattern. When the whole world is a stranger to him, you are the one closest to him. So, he will start to notice you closely, studying your features when you cuddle him. Watching your newborn grow is a magical experience. Perhaps the first few weeks are challenging for the baby and first-time parents. But every moment of the newborn growth journey is enjoyable.

First Month Newborn Growth, Development Details

First Month Newborn Growth

As a new parent, you have lots to learn about caring for and looking after your infant, including how to feed him, help him sleep, cuddle and make him feel comfortable, and understand his constant needs. Yes, your newborn will keep you on your toes in the first few weeks of his life. You may be surprised to see how your baby grows from week to week. Perhaps the first month is the most important when you both try to understand each other’s importance and extend your bond that connected you right in the umbilical cord.

First Month Newborn Weight

Watching your baby grow in size is an unmatched experience as a new parent. It’s natural for newborns to lose weight shortly after birth. They lose the body fluid that their little bodies were filled in at the time of birth. So there is nothing to be alarmed, and he will regain his birth weight within 10 to 12 days – the period in the life of a newborn when growth spurts. Most newborns gain as much as 4- 8 oz a week, growing about 1- 1.5 inches in their first month.

So it’s all too common for little ones to gain or lose weight in the first few weeks after birth. Such baby growth in the first month is natural.

First Month Newborn Appearance

His appearance will gradually change from the first week over the coming weeks and months. This is the period when his body will slowly straighten from the tightly curled position he held inside your womb. Gradually he will learn to stretch his arms and legs and arch his back intermittently. His curled legs and feet will gradually straighten over the first year.

The bones in your baby’s skull grow faster during the first four months. His head will grow to about 15 inches by the end of the first month from 13 ¾ inches at the time of birth. Boys tend to have a slightly larger head than girls, with the difference being of about ½ inch.

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The eyelid swelling that occurred at the time of birth will disappear by the end of the first two weeks. Red spots in the eyes will go away in a three-week time.

It’s natural for some newborns to develop acne on the face in the first four weeks of his life. The reason could be the hormonal stimulation of oil glands in the skin that are passed across the placenta during the fetal development.

His skin may appear blotchy, from pink to blue in color. His hands and feet may become colder and blue in contrast to the rest of the body. Since the blood vessels leading to the hands and feet are more sensitive than the rest of their body to temperature changes, they tend to shrink in cold conditions, supplying less amount of blood to the exposed skin. The areas that don’t get adequate blood supply appear blue. However, if you move her arms and legs, they will quickly turn pink due to the supply of blood.

First Month Newborn Reflexes

Reflexes are a part of your newborn’s growth in the first few months. Your newborn uses a set of reflexes to ensure he gets the care he needs. The “Rooting reflex” assists the baby in locating the breast or bottle when he is hungry. A newborn uses the “Palmar reflex” to grip your finger when you try to play with his palm. The “Moro or Startle reflex” is present in newborns as a response to being startled.

First Month Newborn Vision

His eyes may appear puffy and swollen after delivery, and his vision is a little blurred in the early period of his life. A newborn can only see as far as 8-12 inches. Gradually his vision and hearing will improve, and he will become more sensitive to his surroundings. He will slowly start to notice what’s going on around him. He will be particularly happy to see you or hear your voice. A colorful toy always sparks interest and grabs the attention of a newborn.

Don’t be surprised to see his eyes crossed at times. This is quite natural because the muscles controlling the eye movement are still developing, so there’s nothing to worry about.

First Month Newborn Cognitive Development

Your baby’s brain is developing rapidly. The more you interact with your tiny tot, the speedier his brain growth. Although your infant may not appear to be doing much in the first few weeks of his life, he is still trying to do a lot. He will try to mimic your facial expressions. Newborns have a preference for the sweet stuff and can easily differentiate between sweet and sour, as their sense of taste is highly developed.

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First Month Newborn Swollen Sex Organs

You may be worried about the swollen scrotum or the swollen labia of your little one. But this is nothing to worry about.  The swelling of sex organs is primarily due to your hormones circulating in the newborn’s body. These organs will soon reach baby proportions as a healthy sign of first month baby growth. These are the same hormones that cause milky discharge from breasts and vaginal discharge in babies. Within the first two weeks, the discharge should go away.

First Month Newborn Asking for Feeds Frequently

During the first few weeks, babies eat a lot, so it is natural for them to cry when they are hungry. Don’t be surprised if they cry for more feed immediately after you have breastfed them. They need to be fed for at least 12 times a day. This is due to the incredible growth physical and mental that they are undergoing in the first few weeks and months.

First Month Newborn’s Dirty Diapers

You can expect your baby to dirty a lot of diapers in a day. Prolific poop is normal for newborns. In the first month of baby birth, you will notice many changes in the poop color – from black and sticky to green, or mustard yellow stools, which will be soft and watery. Don’t be alarmed with this. This is quite natural for every newborn. The color and stickiness are attributed to meconium that filled his intestines when he was in the womb.

First Month Newborn Has Irregular Sleep Pattern

As far as sleep pattern is concerned, it may take a newborn six to 12 weeks or longer to have a regular sleep schedule. Daytime sleep diminishes gradually as a baby grows, though the first month baby growth may not bring about significant changes in his sleeping pattern. You should be ready for sleepless nights with your tiny tot in your arms.

Ravneet Kaur
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Ravneet Kaur

Ravneet is a proficient author on mindful parenting, child psychology, and pregnancy-related issues. Her practical writing focuses on helping parents develop a compassionate understanding of child behavior and build strong family bonds. She also researches and writes on women’s health, pregnancy problems, relationship issues, teens, and child development and education.
Ravneet also blogs at
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