Flat feet can’t be permanently “cured” in most cases, but they can be significantly improved through targeted exercises, supportive footwear, and orthotics. For the majority of people, flat feet are flexible, meaning the arch is visible when sitting but collapses under body weight. This type responds well to strengthening exercises that can measurably raise the arch over four to six weeks. Rigid flat feet, where no arch is visible even when sitting, are rare and harder to treat without surgery.
Flexible vs. Rigid Flat Feet
The distinction between flexible and rigid flat feet determines your treatment path. To check which type you have, sit down and look at the inside of your foot. If you can see an arch that disappears when you stand up, you have flexible flat feet. This is by far the most common type, and it means the structures in your foot are capable of forming an arch but lack the muscle strength or tendon support to maintain it under load.
If your foot looks completely flat whether you’re standing or sitting, and you have difficulty moving it up, down, or side to side, that’s rigid flat foot. Rigid flat feet are more likely to cause pain and may eventually require surgical correction if conservative treatments don’t help.
Exercises That Rebuild the Arch
Strengthening the small muscles on the sole of your foot is the single most effective non-surgical approach. Research published in the Journal of the American Podiatric Medical Association found that these exercises enhance arch height, improve hindfoot alignment and balance, and increase activity in the muscle that pulls your big toe into proper position. Results can appear in as little as four to six weeks.
The most studied exercise is called the “short foot.” You perform it by sitting with your foot flat on the floor, then trying to pull the ball of your foot toward your heel without curling your toes. This lifts the arch from underneath. Your toes should stay extended and relaxed against the ground. Hold for a few seconds, release, and repeat. Most training protocols use two to three sessions per week with one to three sets of anywhere from four to 30 repetitions per session. Starting with lower reps while seated and progressing to standing makes the exercise increasingly challenging as your muscles adapt.
Another common exercise involves picking up small objects (marbles, towels, pencils) with your toes. This targets both the intrinsic foot muscles and the larger muscles in your lower leg that help support the arch. Combining short foot exercises with these object-pickup drills appears to be more effective than either approach alone.
Walking Barefoot and Minimalist Shoes
There’s solid evidence that habitual barefoot walking builds stronger arches. Studies comparing populations across different cultures consistently find that children who grow up barefoot have more developed arches and stronger foot ligaments, tendons, and muscles than children who regularly wear shoes. Research on the Kalenjin tribe in Kenya, for example, showed that combining high physical activity with barefoot walking produced noticeably more pronounced arches.
For adults, spending more time barefoot at home or transitioning gradually to minimalist shoes (thin, flexible soles with no arch support) can activate underused foot muscles. The key word is “gradually.” Jumping straight into minimalist shoes for long walks or runs when your feet aren’t conditioned for it can cause new injuries. Start with short periods around the house and increase over weeks.
Choosing the Right Shoes
When you’re not going barefoot, the right shoes can compensate for a collapsed arch and prevent pain. Look for these features:
- Firm heel counter: The rigid cup around your heel should lock your foot in place and prevent side-to-side sliding.
- Supportive midsole: A dual-density midsole with firmer material along the inner edge slows overpronation, the inward rolling that flat feet cause with every step.
- Torsional stability: Grab the shoe at the toe and heel and try to twist it. A good shoe for flat feet will flex at the toe box but resist twisting through the middle.
- Built-in arch support: The insole should have a firm, contoured arch that doesn’t flatten easily under pressure. A soft, squishy insole won’t provide meaningful support.
Motion control shoes, which have a rigid heel, a straight shape, and firm midsole reinforcement, offer the most correction for significant overpronation.
Orthotics: Over-the-Counter vs. Custom
If shoes alone don’t resolve your discomfort, insoles are the next step. For mild to moderate foot fatigue or aching from long hours on your feet, over-the-counter insoles can work well. Give them two to four weeks of consistent use before deciding they aren’t helping.
Custom orthotics, molded specifically to your foot by a podiatrist, are worth considering when pain is tied to the structural shape of your foot or the way your body moves. Flat feet are one of the primary conditions custom orthotics are designed for. Be cautious with online companies advertising “custom” orthotics. These are typically prefabricated products that may cost as much as truly custom devices but aren’t tailored to your biomechanics, and they can sometimes make pain worse.
When Children Have Flat Feet
Almost all toddlers have flat feet, and this is completely normal. A fatty pad fills the arch space in early childhood. That pad disappears around age five, and arch development progresses through ages six and seven, but the arch doesn’t reach its final mature shape until age nine or ten. Some research suggests the foot continues refining its structure into the mid-teens.
Flat feet in children under 10 are not considered a problem unless the child has stiffness, pain, or difficulty with normal activities. Flexible, painless flat feet in a child simply need observation, not treatment. Surgical referral is only appropriate for stiff or painful flat feet that don’t respond to conservative approaches. Clinicians are generally advised to hold off on formal treatment programs for flat feet in children until around age 16, since the foot may still be developing.
Surgical Options for Severe Cases
Surgery is reserved for flat feet that cause persistent pain despite months of conservative treatment, or for rigid flat feet that can’t be managed any other way. The two most common procedures are often performed together as part of a flatfoot reconstruction.
A medializing calcaneal osteotomy (sometimes called a “heel slide”) involves cutting the heel bone and shifting it back under the leg into proper alignment. Screws, staples, or a plate hold it in position while it heals. A tendon transfer replaces or reinforces the damaged posterior tibial tendon, the key tendon responsible for maintaining your arch. A working tendon from elsewhere in the foot is rerouted and anchored to bone to restore pulling strength.
In children with flexible flat feet, a less invasive option called subtalar arthroereisis places a small implant between two foot bones to limit the collapse of the arch. Patient satisfaction is reported as excellent in about 80% of pediatric cases, with a complication rate around 7% and a reoperation rate of about 3%. The most common complications include pain at the implant site and the implant shifting or breaking. In adults, complication rates with this procedure are higher, with pain at the implant site reported in up to 39% of patients in one study, though most symptoms resolved after the implant was removed.
Recovery from flatfoot reconstruction typically involves a period of non-weight-bearing in a cast or boot, followed by gradual progression to full activity over several months. Physical therapy is a standard part of the recovery process to rebuild strength and mobility in the reconstructed foot.
A Practical Plan for Improving Flat Feet
For most adults with flexible flat feet, the most effective approach combines daily foot strengthening exercises (short foot drills, toe curls) with proper footwear and, if needed, arch-supporting insoles. Commit to at least four to six weeks of consistent exercise before judging results. Spend more time barefoot at home to engage muscles that supportive shoes tend to do the work for. If pain persists after a few months of this approach, a podiatrist can assess whether custom orthotics or further intervention makes sense.