Shin Splints: Why They Keep Coming Back

Shin splints keep coming back when the return to running outpaces what the shinbone and the muscles along it can handle. Rest calms the pain, but rest alone does not make the leg stronger, so the same jump in training brings it right back. A slower build, attention to the calf muscles and a check for a stress fracture are what break the cycle.

What shin splints are

Shin splints, or medial tibial stress syndrome, is pain along the inner edge of the shinbone, the tibia. It develops when the muscles and the bone's outer lining are overworked by repetitive activity. It is one of the most common causes of exercise-related leg pain in athletes and is seen most often in runners.

The pain can be sharp or dull and throbbing. It usually spreads along a stretch of the lower inner shin rather than one pinpoint spot, and it can hurt both during and after a run. Mild swelling is possible.

Why they keep coming back

The return is faster than the recovery. The American Academy of Orthopaedic Surgeons advises being pain-free for at least two weeks before returning to exercise, then building slowly. Many runners go back the day the pain fades, at their old mileage.

The training jump that started it never changed. Shin splints often follow sudden changes: more days a week, longer runs, or hills after only flat ground. If the training plan stays the same, the pain tends to return.

The calf muscles are still tired or weak. The soleus and tibialis posterior attach along the inner edge of the tibia, and that ridge is often tender. When muscles fatigue, they absorb less shock and pass more of the load to the bone. Calf strength and endurance help share that load.

Foot mechanics and shoes. Flat feet, rigid arches and worn-out shoes are listed as contributing factors. Excessive rolling in of the foot is one of the best documented risk factors.

Earlier injuries. People who have had previous lower leg injuries are more prone to overuse injuries, shin splints included.

Shin splints or a stress fracture?

Shin splints and tibial stress fractures sit on a continuum of bone stress, so the line between them is not always sharp. Shin splints tends to cause diffuse pain along the middle and lower shin. A stress fracture more often causes tenderness in one spot.

Warning signs of a bone stress injury include discomfort in a specific spot along the bone, aching while lying in bed at night, and swelling. The American Academy of Orthopaedic Surgeons advises seeing your doctor as soon as possible if you think you have one. Imaging such as an MRI or bone scan can show a stress fracture.

There is one more look-alike. In chronic exertional compartment syndrome, pain builds during exercise and usually goes away soon after you stop, and it is diagnosed with pressure testing.

Your primary care doctor, a sports medicine physician or an orthopedist should evaluate shin pain first, especially if it narrows to one spot, hurts at night or does not settle with rest.

Where my care fits

Rest is the best supported treatment in the early phase, and good trials of other treatments for shin splints are scarce. So my role is to support a gradual return, not replace it.

The first visit runs 60 to 75 minutes. I review your training, shoes and any imaging, test the movements running demands, and assess the calf, shin and foot muscles by hand, along with balance and walking. Dry needling releases trigger points in overloaded calf and shin muscles. Alongside dry needling, I use neuro-functional acupuncture, built on neuroscience and evidence-based practice. Unlike regular electroacupuncture, the needles and gentle electrical stimulation are mapped to the specific nerves involved, such as the nerves of the lower leg. It works in three ways. It neurorehabilitates, helping irritated tissues and nerve receptors recover. It neuromodulates, shifting the body's own pain-relieving chemistry. It neuroregulates, calming the nerve signals and circuits that keep shin pain going. I coordinate load with your physician, physical therapist or coach. The sports-related pain page covers the full plan, and the ankle pain page covers the calf and lower leg muscles. Results vary from person to person.

If you are not sure what is causing your pain, try the My Symptoms tool.