When to see a doctor
By Mayo Clinic StaffSeek emergency medical care if you have leg swelling and any of the following signs or symptoms, which may indicate a blood clot in your lungs or a serious heart condition:
- Chest pain lasting more than a few minutes
- Difficulty breathing
- Fainting or dizziness
- Confusion
Also, seek immediate care if your leg swelling:
- Occurs for no apparent reason
- Is related to a physical injury, such as from a fall, a sports injury or a car accident