A Developmental Timeline of 18 Months Baby

18 months development

Although when you brought up a baby you feel like it was just yesterday you found out that you are going to be a parent, in reality, your baby has grown and changed so much in just a year and a half. It is amazing to think about all of the things that have happened in such a short time. But when it comes to 18 months of development of a baby, every parent wants to know about it.

So check out our guidelines about 18 months’ development of the baby in different milestones:

Language and communication development

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At this age, babies develop their language skills very rapidly. By the time they are 18 months old, they can understand up to 50 words. They also start using simple phrases such as “mama”, “dada”, “bye-bye” etc. Babies at this age also start to imitate the sounds they hear around them.

Physical development


The physical development of a baby during these 18 months includes crawling, standing up, and walking. Some babies might even start running! During this period in their lives when they are more active than ever before parents need to be extra vigilant about safety because if something were to happen such as falling over or getting hurt–you wouldn’t want them Anniversary wishes on top of everything else. Babies also develop fine motor skills which enable the child to learn how to do things like pick objects with fingers from surface areas nearby.

Social and emotional development

The social and emotional development of a baby during the first 18 months of development is critical to their future well-being. While babies are not yet able to understand that not everyone in this world will treat them as nicely or with respect, by development they can recognize when someone treats you differently just because of who we’re friends/family members and that’s not always a good thing. A sense of attachment starts forming at around 12 months when children start looking out for themselves but also caring deeply about those close enough suchlike parents, siblings, grandparents, etc. They begin learning stranger danger around this age too and some stranger anxiety is to be expected.

Cognitive development

Cognitive development refers to the way your baby learns and thinks. By 18 months of development, babies can use simple gestures such as pointing and waving. They also start to understand simple commands such as “Come here” or “No”. Babies at this age also start to understand the concept of object permanence which means that they know that an object still exists even if it is out of sight.

Sensory development

At around 18 months of development, your baby has undergone a tremendous amount of change in just one year. They are now more aware and able to explore their surroundings with each new sense they develop. At this age babies start becoming curious about what it feels like for example when you touch or taste something; then eventually will try smelling things too- all while keeping an eye open on where these items come from (i e anyone who might be offering them).

Toilet training

Toilet training is one of the big milestones for 18-month-old babies. Although every baby is different and will be ready at different times, most babies will be able to start toilet training around this age. There are many different ways to potty train your child, so it is important to find what works best for you and your baby.


During the first 18 months, babies need a lot of sleep. They will usually take 2-3 naps during the day, and sleep for around 11-12 hours at night. As they get older, they will start to consolidate their naps into one long nap in the afternoon. It is important to create a regular sleep routine for your baby so that they can get the rest they need.


During the first 18 months, babies need a variety of nutritious foods to support their rapid growth and development. Breast milk or formula should be the main source of nutrition for babies under 6 months old. After 6 months, solid foods should be introduced, and by 18 months, most babies will be eating 3 meals a day. It is important to offer a variety of healthy foods so that your baby gets the nutrients they need.


During the first 18 months, babies will need several immunizations to protect them from diseases. Immunizations are important because they help your baby build up its immunity to diseases. The vaccines that your baby will need will depend on your country of residence.


The first 18 months of development of your baby’s life are a time of rapid growth and development. Babies at this age learn best through exploration and play. It is important to provide a safe and stimulating environment for your baby to learn and grow. Breast milk or formula should be the main source of nutrition for babies under 6 months old, and solid foods should be introduced after 6 months. Immunizations are also important during this time to protect your baby from diseases.

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