Foot pain is one of the most common musculoskeletal complaints, and the cause usually depends on exactly where it hurts, when it started, and what makes it worse. Your feet absorb the force of every step you take, and with 26 bones, 33 joints, and more than 100 tendons in each foot, there are plenty of structures that can become irritated or injured. Here’s a breakdown of the most likely reasons your feet are hurting.
Heel Pain and Plantar Fasciitis
If your pain is concentrated in the bottom of your heel, especially with your first steps in the morning, plantar fasciitis is the most likely culprit. The plantar fascia is a thick band of tissue running along the sole of your foot from heel to toes. Repeated stress causes small tears in this tissue, which triggers inflammation and a stabbing pain that’s worst when you haven’t been on your feet for a while. Getting up after sitting for a long time or standing for hours tends to set it off too.
Plantar fasciitis is extremely common in runners, people who are on their feet all day for work, and anyone carrying extra body weight. It usually improves with consistent stretching, supportive footwear, and rest, though it can take several months to fully resolve.
Pain in the Ball of Your Foot
Sharp or burning pain under the ball of your foot, particularly between your third and fourth toes, could point to a Morton’s neuroma. This happens when a nerve between the toe bones becomes irritated and swells, creating the sensation of standing on a pebble or a fold in your sock. The pain often gets worse in tight shoes and eases when you take them off and rub the area.
More generalized aching across the ball of the foot, without that focused “pebble” sensation, is typically metatarsalgia, a broader inflammation of the metatarsal heads (the bony knobs at the base of your toes). High-impact activities, poorly cushioned shoes, and excess body weight all contribute.
Achilles Tendon Pain
Pain at the back of your foot or ankle usually involves the Achilles tendon, the thick cord connecting your calf muscles to your heel bone. The two main types feel different. Midportion tendon pain shows up a couple of inches above the heel and is the more common form. Insertional pain occurs right where the tendon meets the heel bone and sometimes comes with a visible bump.
Both types tend to develop gradually from overuse, tight calves, or a sudden increase in activity. Strengthening exercises that slowly load the tendon are the primary treatment, though the specific exercises differ depending on where the pain is located. Recovery takes weeks to months, and pushing through pain too aggressively usually makes things worse.
Flat Feet and Arch Problems
Your arches act as shock absorbers, store and release energy while you walk, and help your foot adapt to uneven ground. When arches flatten, the entire alignment of your foot shifts: your heel angles outward, your ankle rolls inward, and weight distributes unevenly across the sole. This can cause aching in the arch, inner ankle, and even the knee or hip over time.
Some people have flat feet from childhood, but arches can also collapse in adulthood. Connective tissue disorders, prolonged immobility after an injury that weakens supporting muscles, and general wear and tear on the tendons that hold the arch up are all common causes. Supportive shoes or custom orthotics redistribute pressure and reduce pain for most people with flat feet.
Stress Fractures
A stress fracture is a tiny crack in a bone caused by repetitive force rather than a single injury. In the foot, 90% of metatarsal stress fractures occur in the second, third, or fourth metatarsals, with the second being most common. The pain usually builds over days or weeks, gets worse with activity, and improves with rest. You might also notice swelling on the top of your foot.
Stress fractures require at least three to four weeks of rest from the aggravating activity, and sometimes longer. They’re especially common after a rapid increase in training intensity, a switch to harder running surfaces, or in people with low bone density.
Gout
If your foot pain came on suddenly, often overnight, with intense swelling, redness, and heat in a single joint, gout is a strong possibility. Gout happens when uric acid in the blood rises above 6.8 mg/dL and crystallizes inside a joint. The big toe is the classic target, though ankles and knees are also frequently affected.
A gout flare can make the joint so sensitive that even the weight of a bedsheet is excruciating. Flares typically peak within 12 to 24 hours and resolve within days to weeks. Dietary triggers include alcohol, red meat, and shellfish, but underlying kidney function and genetics play larger roles than diet alone.
Nerve Pain From Diabetes
Burning, tingling, or a “pins and needles” sensation in both feet, especially at night, is a hallmark of peripheral neuropathy caused by diabetes. Over time, high blood sugar damages the small nerves in the feet, producing pain that can range from mild numbness to extreme sensitivity where even a light touch hurts. Symptoms are usually worse at night and almost always affect both sides, though one foot may be more noticeable than the other.
The danger of diabetic neuropathy goes beyond pain. As numbness progresses, you can injure your foot without realizing it, leading to infections or wounds that heal slowly. Tight blood sugar control is the single most important factor in slowing the progression.
How Your Shoes May Be the Problem
Footwear is an underestimated source of chronic foot pain. Shoes with narrow toe boxes squeeze the toes together, and over time this pressure can cause bunions (a bony bump at the base of the big toe), hammertoes (where the middle joint of a toe curls upward), and crossover toes (where one toe drifts over its neighbor). Women are statistically more likely to wear shoes that are too small, which partly explains higher rates of these deformities.
When shopping for shoes, a square or round toe box is far better than a pointed one, and depth matters as much as width. A deeper toe box gives room for the forefoot to spread naturally. If your foot pain eases significantly when you’re barefoot or in roomy shoes, your footwear is likely contributing.
Signs That Need Prompt Attention
Most foot pain improves with rest, better shoes, and time. But some symptoms warrant a same-day visit. Go to urgent care if you have difficulty bearing weight, swelling that hasn’t improved after a few days, new deformity in a toe or foot, or burning and numbness that’s getting worse. Head to an emergency room if there’s an open wound or pus, you can’t put any weight on the foot at all, bones are visibly displaced, or the area is hot and red, which could signal an infection.