Few things can throw off your training like finishing a run only to feel a nagging ache deep in your groin. That dull soreness or sharp twinge can make every stride uncomfortable and leave you wondering if you should keep running at all. Many athletes ask me, “Why is my groin sore after running?” and the answer isn’t always simple. The groin is a busy crossroads of muscles, tendons, and joints. All working hard every time your foot hits the ground. When something’s out of balance, sor...
