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Taking care of a baby gives us parents so many things to look forward to. It’s one of the greatest wonders of the world: to witness a little human’s growth as they achieve baby development milestones. And doesn’t it just make you proud? To know that you’re one of the reasons why this is happening. You brought this baby into the world and everything is all the better for it.

Thinking about it just makes me smile.

Our job here is to guide you throughout the whole thing as best as we can. And part of it is introducing you to the different developmental stages of your little one. This is to help you do the right thing.

But as we’ve done in many of our articles, we are reminding you that parenthood is not all about doing things perfectly. It’s about putting your heart and soul into it. So don’t beat yourself up for not knowing a few things or even for committing mistakes now and then. It’s normal. Ask any parent you know. None of them went through it without standing up after every failure. Let’s embark on this journey together.

baby development milestones

We have the following articles to tell you more about your baby. Check them out.

The different developmental stages of a baby show us drastic and gradual changes. Some are easy to handle while some require special care. At 7 months old, you start to wonder what shenanigans your little one will pull off. He could be laughing more than usual or you notice that he’s too observant and sometimes tries to imitate what he sees. What does this mean?

In this article, we’re going to cover everything you need to know about a 7-month old baby and their development. Let’s start with their growth.

7-month old baby milestones: Weight

Age 6 mos 7 mos 8 mos 9 mos 10 mos 11 mos 1 yr
Weight in kg 6.3-9.8 6.5 – 10.2 6.7-10.6 7-11 7.2-11.4 7.4-11.7 7.6-12.1

7 months old baby milestones


We all know that babies this age will steadily gain weight. At 7 months, expect that they’re twice as heavy as they were at birth. Aside from weight, there are other measurements that you might want to look into such as height and circumference of their head. Measuring the latter is helpful in keeping tabs on the baby’s brain growth. To know more about it, we encourage you to bring your baby to a regular health check-up.


Another major event to prepare for is teething. It typically starts around 4 to 7 months. But some babies start to teeth much later, which is normal. Among the most common symptoms are swollen gums, drooling more than usual, and changing of eating habits. Some associate teething with fever but that’s not actually the case. Your baby’s temperature may slightly rise but that’s it. It shouldn’t go up to more than 101°F, however. Your baby shouldn’t experience diarrhoea or either. If you notice these, consult your doctor right away.

Baby development milestones: Cognitive skills


Turning 7 months old marks the baby’s improvement in terms of nonverbal communication. You may notice that you find it much easier to understand their disposition. They smile a lot, they are more vocal, some kids laugh a lot too, which is a source of joy in many households. Another remarkable thing is how they are able to respond to your cues as well. Your baby exactly knows if you’re happy or sad. They can interpret it according to your facial expression.

Object Permanence

Object permanence is one of the developmental milestones studied by Jean Piaget, a psychologist who is well-known for his work on children’s cognitive development. According to his theory, children undergo different stages from birth where they develop cognitive skills that allow them to understand, explore, and relate to the world.

Before developing object permanence, children tend to think that a thing ceases to exist the moment it disappears from their sight. For instance, if you play peek-a-boo with a 3-month old baby and hide behind a person, the idea that you’re just there won’t appear to them. You’re simply gone.

By the age of 7 months, they start to develop their sense of permanence. And by 8 to 9 months, expect them to fully develop the skill.

7 month old baby activities

7 months baby development

For motor skills development

One of the play ideas you can try out is hiding something your baby wants in a box. The objective is for them to open it to see what’s inside. Every time they do it, tell them what’s called. It’s best to do it with 7 month-old baby toys or objects that they like to play with. You can switch to a throwing game with the same toys by encouraging the baby to throw toys inside the box. You can also have them reach objects while sitting up or when they are lying on their stomach. 

For sensory skills development

7 month old baby milestones brain activities for 7 month old

One of the activities that can help them develop good sensory skills is reading to them animatedly. Imitate animal sounds, exaggerate as much as you can, and don’t forget to let them see the animal “producing” the sound. Using or playing with different objects will also help them recognise their different textures. For instance, using different soaps and incorporating play during bathtime. 

There you go, parents. That’s it for now from us. For our next posts, we’re going to talk about other baby development milestones. If you have any questions, don’t hesitate to leave us a message