Bunions: What the Evidence Says and How Physical Therapy Helps

What is a bunion?

A bunion is not just a bump on the side of your foot. It is a joint problem, and physical therapy can help you walk with less pain, whether or not you ever need surgery.

The medical name for a bunion is hallux valgus. The big toe drifts toward the second toe, while the first metatarsal bone (the long bone behind it) angles outward. That outward angle creates the visible bump at the base of the big toe.

Over time, the muscles and ligaments around the joint pull unevenly. The small muscle that should hold the big toe straight, the abductor hallucis, slides under the bone and loses its leverage. That is one reason bunions tend to get worse, and one reason targeted exercise matters.

How common are bunions?

Roughly 1 in 4 adults has a bunion, and the odds climb with age. The largest meta-analysis on the topic pooled 76 surveys covering nearly 500,000 people (Nix et al., 2010 (source)).

U.S. data tell the same story. In the Framingham Foot Study (source), a population-based study of older adults in Massachusetts, 44% of women and 22% of men had a bunion. About 11% of women and 3% of men had a bunion that was also painful.

A 2023 global meta-analysis put overall prevalence at 19%, with North America at about 16% (PubMed (source)). Estimates vary by how bunions are measured, but every major dataset agrees: bunions are common, more common in women, and more common with age.

What causes bunions?

Bunions have no single cause. Researchers describe them as multifactorial: genes set the stage, and foot mechanics and footwear add load over the years.

• Family history. The Framingham team found bunions are highly heritable, with heritability estimates up to 0.89 depending on age and sex (Hannan et al. (source)). If your mother or grandmother had bunions, your risk is higher.
• Footwear. In the Framingham data, women who had worn high heels in the past had 47% higher odds of a bunion (PubMed (source)). Shoes with a narrow toe box squeeze the big toe inward.
• Foot mechanics. Flat feet, an overpronating (rolling-in) foot, and a loose or hypermobile first ray all shift pressure onto the big toe joint (MOBILIZE Boston Study (source)).
• Muscle imbalance. People with bunions show weaker activity in the small muscles that hold the big toe straight than in the muscles that pull it inward (Frontiers in Physiology, 2025 (source)).
• Age and sex. Prevalence rises with age and is roughly twice as high in women.

Signs you should get it checked

Pain is the main reason people seek care, and it affects roughly 76–83% of people with a bunion (Frontiers in Physiology, 2025 (source)). Common signs include:

• A bony bump at the base of the big toe that rubs in shoes
• Redness, swelling, or a callus over the bump
• A big toe that crowds or overlaps the second toe
• Stiffness when bending the big toe up, especially while walking
• Pain under the ball of the foot as weight shifts to the smaller toes
• Changes in balance or walking, which matter more as we age

See a clinician if pain limits walking, work, or exercise, if shoes no longer fit, or if the toe is visibly getting worse. Earlier care usually means more options.

How physical therapy helps

Physical therapy will not make a bone bump disappear. What it can do is reduce pain, improve how the foot works, and, in mild to moderate cases, modestly improve toe alignment and may slow progression.

For mild to moderate bunions, conservative care such as exercise therapy and external supports is the preferred first approach (Clinical Biomechanics, 2025 (source)). A network meta-analysis found the most promising results came from combining patient exercise with toe separators, along with night splints and dry needling (Int J Environ Res Public Health, 2021 (source)). The authors concluded that the best results come from pairing active exercise with therapist-led hands-on care.

A physical therapy plan for bunions typically includes:

1. Intrinsic foot strengthening. Toe-spread-out and short-foot exercises train the abductor hallucis and other small foot muscles that hold the big toe straight. Both have documented benefit (Kim et al., 2013, via Frontiers (source)).
2. Joint mobilization and manual therapy. Gentle hands-on techniques restore motion at the big toe joint and midfoot, easing stiffness and pain.
3. Stretching. Loosening tight calf muscles and the muscle that pulls the toe inward (adductor hallucis) reduces load on the joint.
4. Orthoses, splints, and toe separators. Your therapist can advise on inserts, night splints, or spacers that support alignment.
5. Taping. Kinesiology or rigid taping can offload the joint during activity.
6. Gait and balance training. Retraining how you push off through the big toe protects the joint and lowers fall risk in older adults.
7. Footwear coaching. Wide toe boxes, low heels, and supportive soles remove the daily pressure that worsens symptoms.

What the evidence can and cannot tell us. A 2022 systematic review of 16 trials found that most nonsurgical studies were small and short, so certainty about any single treatment is still low (Hurn et al., 2022, via PEDro (source); Menz et al., 2023 (source)). That is why a good therapist combines approaches and tracks your progress, rather than relying on one gadget or exercise.

Physical therapy after bunion surgery

Surgery corrects the bones, but it does not automatically restore a normal walking pattern. Pressure studies show that even after a well-aligned correction, the big toe and first metatarsal often carry less weight than they should (Schuh et al., 2009 (source)). Rehab closes that gap.

In a study from the Foot and Ankle Center Vienna, 30 patients started a multimodal rehab program 4 weeks after surgery, once a week for 4 to 6 weeks. Their foot function score (AOFAS) rose from 60.7 before surgery to 94.5 at 6 months. Big toe range of motion improved, and the big toe carried more load when walking (Physical Therapy journal (source)). The study had no control group, but a related study by the same team reached the same conclusion: post-op physiotherapy helps restore big toe function and a normal gait (PubMed (source)).

A typical recovery path looks like this. Exact timing depends on your procedure and your surgeon's protocol.

1. Weeks 0–4: Protect. Post-op shoe, elevation, and swelling control. Gentle ankle and knee exercises keep the rest of the leg moving.
2. Weeks 4–8: Restore motion. Guided big toe mobilization, scar care, swelling management, and progression toward normal shoes.
3. Weeks 8–12: Rebuild strength. Intrinsic foot strengthening, calf work, balance drills, and gait retraining to push off through the big toe.
4. Months 3–6: Return to full activity. Longer walks, stairs, work demands, and sport-specific training as tolerated.

Simple exercises to try at home

These are common starting points in bunion rehab. Stop if any exercise causes sharp pain, and ask a physical therapist to tailor them to you.

1. Toe spread-out. Sitting with feet flat, lift all your toes, spread them wide, then lower them while keeping the big toe pressing down and outward. Hold 5 seconds; repeat 10 times.
2. Short foot (arch doming). Without curling your toes, draw the ball of your foot toward your heel to raise the arch. Hold 5 seconds; repeat 10 times.
3. Big toe range of motion. Gently bend the big toe up and down by hand, 10 to 15 times, to keep the joint moving.
4. Towel scrunches or marble pickups. Build general toe and foot strength, 1 to 2 minutes per foot.
5. Calf stretch. Lean into a wall with the back knee straight, heel down. Hold 30 seconds, 3 times per side.

Everyday habits that help: choose shoes with a wide, deep toe box, keep heels low, avoid long stretches in tight footwear, and ice the joint after a long day on your feet.

Get bunion care at Beyond Radix Physical Therapy

Whether you want to avoid surgery or recover fully after it, our therapists build a plan around your foot, your goals, and the latest evidence. We see patients at five New Jersey locations: Secaucus, Hackensack, Edison, East Orange, and West Orange.

This article is for general education and is not a substitute for a medical evaluation. Talk with your physician or physical therapist about your specific condition.

Sources

• Nix S, Smith M, Vicenzino B. Prevalence of hallux valgus in the general population: a systematic review and meta-analysis (source). J Foot Ankle Res, 2010.
• Global prevalence and incidence of hallux valgus: a systematic review and meta-analysis (source). 2023.
• Characteristics associated with hallux valgus in a population-based foot study of older adults (Framingham Foot Study) (source).
• Hallux valgus and lesser toe deformities are highly heritable: the Framingham Foot Study (source).
• Factors associated with hallux valgus: the MOBILIZE Boston Study (source). Osteoarthritis Cartilage, 2010.
• Adjusted indirect and mixed comparisons of conservative treatments for hallux valgus: network meta-analysis (source). 2021.
• Effects of exercise combined with external support on hallux valgus angle and pain: network meta-analysis (source). 2025.
• Hurn SE et al. Effectiveness of nonsurgical interventions for hallux valgus (source). Arthritis Care Res, 2022.
• Menz HB et al. Nonsurgical management of hallux valgus: randomised pilot and feasibility trial (source). J Foot Ankle Res, 2023.
• Schuh R et al. Rehabilitation after hallux valgus surgery (source). Physical Therapy, 2009.
• Effect of physiotherapy on functional improvement after hallux valgus surgery (source). Schuh R et al.
• Foot exercise approaches for hallux valgus (source). Frontiers in Physiology, 2025.