Cast care, swelling and warning signs
Swelling may increase during the first days after a fracture and after a cast has been applied. Monitor the injured limb carefully.
Seek urgent medical help if:
- the cast becomes very tight
- pain increases or is not relieved by prescribed medication
- numbness or tingling appears
- fingers or toes become cold, pale or blue
- there is marked swelling, bleeding, discharge or an unpleasant smell
These symptoms may indicate impaired circulation, nerve compression or another complication.
If the cast becomes loose
As swelling decreases, the cast may become loose. Contact the trauma team for assessment; inadequate fixation can affect healing.
Reducing swelling
- gently move exposed fingers or toes if permitted
- keep the limb elevated
- avoid unapproved loading
- follow the clinician’s instructions
Fracture blisters
Severe swelling can cause skin blisters, especially around the ankle or forearm. Do not open them yourself; they require medical observation and appropriate wound care.
Some unstable fractures cannot be treated adequately with a cast or brace. The orthopedic trauma surgeon determines whether surgery is required after examination and imaging.
