As a parent, you always try to make sure your child develops well. On some parts, unfortunately, you have little control such as bedwetting and will just have to let it happen. Bladder development is an example of this. In this blog, we take a closer look at what developments you can expect by age.
The bladder is a hollow muscle that temporarily stores urine from the kidneys. It is a spherical organ that is also compared to the shape of a pear. The muscles around the bladder relax as more urine builds up until it reaches its full capacity.
The normal bladder capacity of a child up to 10 years old can be calculated by calculating age in years x 30 + 30. In adults, it is between 350 to 500 milliliters. At this volume, the bladder sends a signal to your brain letting you know it's time to urinate.
A baby's bladder: reflexes & development
Development of the bladder basically begins at birth. In a newborn baby, the bladder functions completely independently. When the bladder is at a certain capacity, the pelvic floor muscles relax and the muscle in the wall of the bladder contracts.
The baby urinates until the bladder is completely empty. Because a baby does not yet have control from the brain over the function of its bladder, it urinates without regard to time or place.
Between 1 and 2 years old: awareness
Between the first and second year, the child becomes aware that the capacity in the bladder increases each time until it is at a certain capacity. At the next step, the child learns to cope better with the signals step by step (or pee by pee). As the bladder develops, the child gradually manages to hold it up until a more convenient time and place.
Children over 3 years old: control & timing
Only once the child has full control over contracting and relaxing the sphincter can you expect control over the bladder. This generally happens between the second and third year of life and is also an important development of the bladder.
It also helps that around this age the capacity of the bladder increases considerably, making it easier to hold up the urine for a while.
Just because a child has control over the sphincter of the bladder doesn't guarantee that you won't have any more accidents! Just like adults, the need to urinate becomes stronger and stronger as the bladder fills up. At some point, the bladder is at its limit and involuntary reflexes take over!
During this period, the child will become increasingly successful at holding up the urine which is also an important development of the bladder.
By the age of three, 75% of children are potty-trained during the day.
Children from 4 years old: interruption of pee
From this age, there is voluntary control over whether or not to pee correctly. They also manage to interrupt the stream while urinating. This does not seem exciting at first glance, but it is the last stage before the basic elements of the system are reasonably complete.
A large proportion of children will be interested in going to sleep without a diaper on. From a psychological aspect, this is an important stage for the child because sleeping without a diaper is a huge step toward adulthood.
If you feel your child is ready, it is good to give them that responsibility so that a dry night feels like a personal victory! So now we are not only talking about a development of the bladder but also a development of the child himself.
By the age of four, 98% are potty trained during the day and 75% at night.
But my child still wets the bed!
No worries, no worries! The development of the bladder does go well and your child is not alone and it doesn't have to be a big deal at all! If your child is not potty trained before the age of five, it's a good idea to investigate this a little more closely. Wondering how Dryly® can help with this? Then take a look here.