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Baby's Development: Fourth Month

Blog > Baby's Development: Fourth Month
Posted on: September 13th, 2017by Ivana Stamenkovic

Your Baby’s Appearance at Fourth Month of Life

Your baby is probably drooling for a month or two, but now is the time when you can actually expect for a first tooth to appear (it's usually a bottom front one). It's still early, but don't be surprised if you see a white cap in your baby's gums. You may also notice that your baby’s eyes are starting to change color.

Your Baby’s Growth at Fourth Month of Life

With four months, most babies will double their birth weight. It's important that she gains weight regularly, and not how much she gains (her growth slows now). However, if you think your baby isn't gaining enough weight or that she's eating too little, consult her pediatrician.

Your Baby’s Motor Skills at Fourth Month of Life

You'll notice your baby has developed her motor skills. Now she's able to grab anything within her arms reach. She'll move or shake toys and other objects, but be careful - everything she grabs will end up in her mouth. Four-month-olds don't have a wobbly head anymore. While lying on her tummy, your baby can lift her head and chest upright, using her arms as a support. Some babies will start to arch their back, too. It's most likely that she's also figured out how to roll over from front to back.

Your Baby’s Senses at Fourth Month of Life

Your babies vision has really improved - she can now see things that are far away from her, and she can better distinguish between different shades of the same color. Your baby's hearing is improving, too. Introduce her some classical music and offer her toys that play music or that can be played. You can even create your own toys by putting different small objects (such as rice, beans, and dried pasta) in a small plastic bottle (just remember to seal the lead tightly).

Your Baby’s Sleeping at Fourth Month of Life

If you're lucky enough, your baby might sleep through the night. A well-established nighttime routine may help your baby go to bed. Give her a bath, dress her in her pajamas, feed her, and read her a bedtime story until she falls asleep. However, it's possible that your baby doesn't need that much sleep. Some babies will sleep through the night and have one or two longer day naps, while others will have less sleep at night and shorter naps during the day. Every baby sleeps according to her own needs.

Your Baby’s Eating at Fourth Month of Life

Your baby doesn't need as many feedings as before, because her stomach is now bigger, and can take on more milk at once. Some babies may no longer be satisfied with only breast milk or formula. If you think that's the case, you should consult your baby's pediatrician. If you start introducing solids too early, your baby is more likely to pick up an infection or has a bad reaction to food. And some foods shouldn’t be given to babies younger than six months. Even though you still may not start with introducing solids to your baby, this is a good time to start researching and thinking about which weaning techniques you'd want to try (baby-led weaning or spoon-fed weaning). You should also think about foods you'll introduce to your baby first.

Your Baby’s Communication at Fourth Month of Life

It's possible that your baby will start to imitate the sounds you make, so you should talk to her. If you make a funny noise, she'll probably start to laugh or smile. At this age, your baby can use her face to express a wide range of emotions, and she's also learning how to read emotions from your voice and facial expressions. She's also noticed that people around her respond to her actions - many babies enjoy dropping the same things millions of times, just to watch how their parents pick it up several times. And you may even hear her say 'ma-ma' or 'da-da' (but she still isn't aware of their meaning).

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