Imagine you have two sides to your body, a left side and a right side. Hemiparesis is when someone has trouble moving one entire side of their body, either the left or the right. This can happen for many different reasons, but the most common one is because something has happened to their brain.
Your brain is like the control center of your entire body. It tells your arms and legs what to do, and helps you think and feel things. If something goes wrong with your brain, it can affect how your body works too.
When someone has hemiparesis, it means that half of their brain is not able to tell their body what to do quite as well as it should. This can make it hard for them to move their arm or leg on one side of their body, or to do things like dress themselves or eat with a fork.
It can be really frustrating and scary to suddenly have trouble moving one side of your body, but doctors and therapists can help people with hemiparesis learn new ways to do things and get better over time. With a lot of patience and hard work, someone with hemiparesis can learn to do almost anything they want to do.