Step 4: Read and complete the decision guide to learn more about your symptoms.
Leg Swelling (Edema), New Onset
You still might have injured the foot or ankle without remembering an actual incident. But let's assume that there was no injury.
An infection can cause swelling, but almost always there are other symptoms, including:
- Warmth over the area that is most painful
Do you have symptoms that suggest a possible infection?