Shin pain can occur for a variety of reasons. Most common is shin splints. Shin splints are an inflammation of the muscles of the lower leg where they attach to the tibia (shin bone). Inflammation occurs usually with overuse, prolonged running on hard surface, or starting a new running or impact exercise activity after a prolonged period of inactivity. Treatment for shin splints would include icing, resting (but not complete rest), and stretches. It may also be beneficial to have your son's feet and cleats/shoes assessed to ensure he is running with proper biomechanics, or if he would benefit from an orthotic shoe insert. There are a few other causes of shin pain including a stress fracture, muscle strain, or compartment syndrome(swelling in the compartments of lower leg, which would need to be addressed immediately). See your doctor immediately if you notice significant swelling of the lower leg or if your son's feet are going numb with activity. If your son's pain continues for 1-2 weeks or is getting worse and severe, I would have him follow up with a sports medicine doctor or an injury screen that we can perform here in clinic.
Jeremy Wilhite, PT, OCS
Drayer Physical Therapy Broken Arrow
2560 E Kenosha ST
Broken Arrow, OK 74014