The wrist is where the bones in the hand meet the two forearm bones (the radius and the ulna). A broken wrist is a fracture in any of these bones. Your child has a fracture in the radius at the end where it joins the wrist.
The orthopedic specialist (bone doctor) put a cast on your child’s wrist to hold it still while it heals. The cast will stay on for about 4-6 weeks. With proper care, most kids heal well from a wrist fracture.

Follow your orthopedic specialist’s instructions for:
- Any activities your child needs to avoid
- When to follow up
For pain and swelling:
- Prop up the wrist on pillows when your child is sitting down or sleeping.
- Remind your child to wiggle the fingers and the thumb to keep blood circulating normally.
- When your child is awake, put ice in a plastic bag wrapped in a towel on the cast for 20 minutes every three hours for up to two days. Don't put ice directly on the skin or cast.
- If the healthcare provider said it’s OK, you can give medicine such as acetaminophen (Tylenol® or a store brand) or ibuprofen (Advil®, Motrin®, or a store brand). Follow the package directions for how much to give and how often.
Taking care of the cast:
- Don't put anything in the cast. Make sure your child doesn't put toys, food, or other objects into it.
- Keep dirt, sand, lotion, and powder away from the cast.
- If the cast is irritating your child’s skin, cover the rough or sharp part of the cast with medical tape or moleskin (available at the pharmacy without a prescription).
- If your child has itchiness under the cast, lightly tap on the cast or use a hair dryer on the cool setting to blow air in and around the edges. Don't let your child scratch under the cast or put anything into it.
- If the fingers look puffy, raise the arm above the level of the heart for one hour. If the swelling doesn't get better, call your healthcare provider.
If the cast is not waterproof, keep it dry:
- No swimming
- Younger children can get a sponge bath. For regular baths or showers, you can cover the cast with one of these:
- Two plastic bags sealed at the top with a rubber band (or tape)
- Plastic wrap covered with a plastic bag that is sealed at the top
- A waterproof cast protector
- If the cast gets splashed, blow air into it from a hair dryer on the cool setting.
If your child has a waterproof cast:
- Your child can bathe, shower, and swim without covering the waterproof cast.
- Once a day, and after bathing, showering, or swimming:
- Flush the cast and liner with clean water.
- Dry the waterproof cast with a hair dryer on the cool or fan-only setting afterwards.

Your child’s hand becomes pale, blue, numb, tingly, or cold.

What is the radius bone? The radius is the bone on the thumb side of the arm between the elbow and wrist.
How do kids get a wrist fracture? Kids often break their wrist when they fall on an outstretched hand. This can happen during sports, play, or activities like biking, skating, or using playground equipment.
What does the cast do? The cast is made of fiberglass or plaster with soft padding inside. It supports and protects the broken bone while it heals. It might feel snug, but it shouldn't feel too tight or painful. It can feel heavy, so your child might wear a sling around the neck and over the cast for support.