Thank you for your question. It really depends on where the swelling is and what gear you are running in. It seems that it has to do with the veins in your ankle and I would recommend a study from your cardiologist before wearing compression socks during your run. If this is truly exercise induced, then wearing compression will help a lot and it shouldn’t return.
There could be some systemic condition or disease causing this and affecting the soft tissue or bones of your ankle joints.
Clinical history is critical to assisting in what may be the potential cause. Frequently asymmetric or single leg swelling is representative of a local process of the extremity. When there is bilateral (both limb) involvement, this more than likely represents a systemic or generalized process. It is also critical to understand whether there is associated pain with the presentation. Painful peripheral swelling of joints can represent rheumatic processes. It is also extremely important to identify how long the swelling persists and what is done to relieve the presentation. Given you describe yourself as an 18-year-old girl who appears to be healthy and active as this presentation is developing after running or workout sessions, then the more likely factors appear to revolve around musculoskeletal disorders. Medical evaluation should include basic laboratory studies, radiographs of the ankles and a good physical examination of the involved anatomy with subsequent studies as required to determine the cause of this presentation.
Geoffrey Bricker, DPM
Could be the Achilles’ tendon is tight.