Foot Pain After a Marathon
Posted August 19, 2026 in Foot Pain
Pain after running a marathon can be normal or a sign of a larger problem. This blog discusses the most common foot ailments and injuries after running marathons, along with how to address these issues immediately and in the long run.
Why Do My Feet Hurt After Running a Marathon?
As an athlete, it’s crucial to protect your body and stay healthy so you can continue to do what you love. And as a runner, your feet are your most important assets. Even the most veteran marathon runners can experience foot pain after running a marathon, despite years of practice and established training regimens.
Foot pain during or after a marathon is very common, but it’s important to understand what’s normal and what’s cause for concern. We’ll discuss the top causes of foot pain after a marathon below.
Top Causes of Foot Pain After a Marathon
1. Plantar Fasciitis
Due to overuse, improper footwear, or gait issues, the thick band of tissue that runs along the bottom of the foot, called the plantar fascia, becomes inflamed, causing plantar fasciitis. This common issue typically causes pain along the bottom of the foot, specifically around the heel where the plantar fascia attaches to the heel bone.
Immediate care: Immediately ice or roll a frozen water bottle under your foot for 15–20 minutes, and gently stretch your calves and plantar fascia with the knee extended and also with the knee flexed.
Long-term care: Make sure your shoes fit properly and have solid arch support.
2. Plantar Fasciosis
Plantar fasciosis is caused by repetitive micro-tears in the plantar fascia and is categorized as a chronic, degenerative foot condition. This can be exacerbated by repetitive strain and trauma to the area. Patients often complain of intense, stabbing heel pain, especially early in the morning or after prolonged periods of rest. Plantar fasciosis can be prevented by allowing your plantar fasciitis to heal properly.
Immediate care: Regular calf and plantar fascia stretches can help release tension and relieve pain. Custom orthotics are also often recommended to help offload stress from the heel.
Long-term care: Physical therapy can help promote blood flow and tissue regeneration.
3. Stress Fracture
After repetitive stress like running, tiny cracks can occur in the bones of the foot, called stress fractures. While they may heal on their own, they can cause pain (especially during weight-bearing activities like running), tenderness when touched, and swelling.
Immediate care: If you notice the above symptoms, avoid putting pressure on your foot right away and make an appointment to get an examination. If left untreated, the condition can worsen. X-rays might not show the tiny fractures at first, so you may need an MRI, which can often identify the fracture before it shows up on plain X-rays.
Long-term care: Your podiatrist will likely instruct you to keep your weight off the affected foot, and you’ll need to take a break from running for several weeks.
4. Achilles Tendinitis
Inflammation of the Achilles tendon, called Achilles tendonitis, is often the result of overuse or tight calf muscles; this is why stretching and proper preparation are key! Pain from Achilles tendonitis is typically felt in the back of the heel or along the tendon, from the calf muscles to the heel bone.
Immediate care: Ice, cold compresses, rest, and elevation are all important for relieving some of the discomfort from Achilles tendonitis and preventing the condition from progressing.
Long-term care: Achilles tendonitis can take some time to heal, about two to three months. You’ll need to make gradual progress back to your running routine, paired with calf stretches.
5. Blisters
It may seem like blisters are a runner’s companion, as they are very common. Caused by excess moisture, ill-fitting shoes, and repetitive friction, blisters are mostly harmless, but still painful.
Immediate care: Keep the blister clean and dry, and do not pop it. Special bandages or wraps can help protect it if it pops up in the middle of your run; otherwise, they can mostly be left alone. Seek medical attention if they are red, warm to the touch, or extremely painful.
Long-term care: Blisters can be prevented with moisture-wicking socks and broken-in and fitted shoes.
6. Runner’s Nails and Toenail Damage
If you’ve noticed your toenail(s) are black after a run, you have runner’s nails. Characterized by dark, bruised toenails when blood pools beneath the nail, this condition is caused by repetitive slamming of the toe against your shoe. The toenail may eventually fall off. It’s essentially a blood blister under your toenail, and while painful, it is typically manageable.
Immediate care: In many cases, runner’s toe resolves on its own. The toenail will eventually grow out or detach as the new nail grows underneath. In severe cases, a podiatrist can make a small hole in the nail to drain the blood.
Long-term care: Prevention is key; make sure your toenails are trimmed and your shoes fit properly.
7. Metatarsalgia
Metatarsalgia is an inflammatory condition that is caused by repetitive pressure on the metatarsal bones at the ball of the foot. It often feels like a sharp, aching, or burning sensation in the ball of the foot, or as if there is a pebble in your shoe.
Immediate care: Rest, ice, and elevation will help reduce inflammation and swelling, and it’s best to avoid high-impact activities like running until they subside.
Long-term care: Custom orthotics can help absorb shock while you run, and shoes with a roomy toe box and arch support can help prevent the problem.
8. Morton’s Neuroma
A Morton’s neuroma is the thickening of the nerve tissue in the ball of your foot and feels like a sharp, burning pain, tingling, or the sensation of walking on a rock or pebble. While not always caused by running, it can exacerbate the issue.
Immediate care: Switching to shoes with a wide toe box can help, as can custom orthotics to reduce pressure on the nerve.
Long-term care: Minimally invasive procedures like ultrasound-assisted radiofrequency ablation offer promising, long-term results by damaging the affected nerve bundles so they cannot cause pain.
Learn More About Post-Marathon Foot Health in NYC
Don’t leave your foot health up to chance. If you have experienced any of the above pain or conditions, get an exam to keep your running game strong.
Dr. Ethan Ciment at Chelsea Foot and Ankle is not only an experienced podiatrist but also an avid athlete and former runner, offering key care and advice to marathon runners.
Contact Dr. Ciment today at (646) 929-4149 or complete the contact form to schedule a consultation to assess your foot health or get help with common sports injuries.