Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

Why Swimmers Are Prone to Foot Infections

Swimming pool environments create ideal conditions for foot infections. Warm, moist pool decks and locker rooms harbor human papillomavirus (HPV) and dermatophyte fungi that cause plantar warts and athlete’s foot respectively. Walking barefoot on contaminated surfaces exposes the softened, macerated skin of swimmers’ feet to these pathogens through microscopic breaks in the skin barrier.

Prolonged water exposure macerates (softens and weakens) the skin’s protective outer layer, making it more vulnerable to fungal and viral penetration. Competitive swimmers who spend 15-25 hours per week in the water have chronically macerated skin on their feet, significantly increasing infection risk compared to recreational swimmers.

A 2024 Journal of the American Academy of Dermatology study found that competitive swimmers have 2-3 times higher rates of plantar warts and tinea pedis (athlete’s foot) compared to non-swimming athletes. The communal nature of pool facilities—shared showers, locker rooms, and pool decks—amplifies transmission between swimmers.

Plantar Warts in Swimmers: Prevention and Treatment

Plantar warts (verrucae) are caused by HPV infection of the plantar skin, creating rough, painful growths on the soles of the feet. Swimmers contract HPV by walking barefoot on contaminated pool decks and shower floors. The virus enters through tiny cuts, abrasions, or areas of macerated skin and establishes infection in the epidermis.

Warts present as rough, circular lesions with small black dots (thrombosed capillaries) that cause pain with direct pressure. They may occur singly or in clusters (mosaic warts). Swimmers often notice warts developing on weight-bearing areas—the heel, ball of the foot, and toe tips—where pool deck contact is greatest.

Treatment options include topical salicylic acid preparations, cryotherapy (freezing), Swift microwave therapy, and laser treatment. Dr. Biernacki recommends Swift microwave therapy for swimmers because it creates no open wounds that would require pool restriction. Cryotherapy and excisional treatments require waterproof wound protection or temporary pool avoidance during healing.

Athlete’s Foot and Fungal Infections in Aquatic Athletes

Tinea pedis (athlete’s foot) thrives in the warm, moist environment between swimmers’ toes and on macerated plantar skin. Dermatophyte fungi spread rapidly through pool deck surfaces, shared towels, and locker room floors. The chronic moisture exposure of swimming prevents the dry conditions that normally keep fungal growth in check.

Symptoms include itching, burning, and scaling between the toes (interdigital type), blistering on the arch and sole (vesicular type), or widespread dry scaling across the entire sole (moccasin type). Left untreated, athlete’s foot can spread to toenails (onychomycosis), creating thickened, discolored, brittle nails that are much harder to treat.

Treatment combines topical antifungal medications (terbinafine, clotrimazole) with thorough foot drying protocols. Swimmers should dry feet completely—especially between toes—after every pool session, apply antifungal powder inside shoes and swim bags, and rotate between multiple pairs of shoes to allow complete drying between uses. Oral antifungals may be needed for severe or nail-involved infections.

Fin Injuries: Blisters, Abrasions, and Exostoses

Swimming fins create specific injury patterns from the repetitive dorsal foot pressure and kicking mechanics they demand. Dorsal foot blisters develop where fin straps compress the skin over bony prominences, particularly over the metatarsophalangeal joints and midfoot. Long training sessions in new or ill-fitting fins amplify blister formation.

Swimmer’s exostosis (surfer’s ear of the foot) can develop as bony growths on the dorsum of the foot from chronic fin pressure. More commonly, the repetitive plantarflexion required by fin use stresses the Achilles tendon and flexor tendons, potentially causing tendinopathy in swimmers who dramatically increase fin training volume.

Proper fin fitting is essential—fins should be snug without creating pressure points. Fin socks or neoprene booties worn inside open-heel fins reduce friction and protect against blisters. Gradually increasing fin training volume allows feet to adapt. Any persistent dorsal foot pain from fin use warrants evaluation to rule out stress reaction or extensor tendinopathy.

Pool Deck Injuries and Barefoot Training Concerns

Pool deck abrasions (pool toe, pool rash) develop from pushing off rough pool walls during flip turns and from walking on textured non-slip surfaces. The macerated skin of swimmers is particularly vulnerable to abrasion injuries. These wounds provide entry points for both bacterial and viral infections if not properly cleaned and protected.

Stubbed toes and toe fractures occur from kicking pool walls, lane dividers, and underwater obstacles. Turf toe-type injuries develop from forceful push-offs during starts and turns. The wet, slippery pool environment increases fall risk, and barefoot falls on hard pool decks can cause contusions, sprains, and fractures.

Swim team coaches should ensure pool deck surfaces are properly maintained, drain adequately, and are cleaned with antifungal and antiviral solutions. Swimmers should wear waterproof sandals or aqua shoes when walking on pool decks and in locker rooms to reduce both infection exposure and mechanical injury risk.

Prevention Strategies for Swimmer’s Foot Health

The most effective prevention strategy is wearing shower shoes or aqua sandals in all communal wet areas—pool decks, locker rooms, showers, and saunas. This single habit dramatically reduces exposure to HPV and dermatophyte fungi. Flip-flops with drainage holes dry quickly and provide adequate protection.

Foot hygiene protocol for swimmers: thoroughly wash feet with soap and water after every pool session, dry completely between all toes, apply antifungal powder or spray, allow feet to air dry before putting on closed shoes, and inspect feet regularly for early signs of warts, fungal infection, or skin breakdown.

Skin care includes applying moisturizer to prevent the excessive drying and cracking that occurs between pool sessions (the wet-dry cycle damages skin barrier function) and keeping toenails trimmed straight across to prevent ingrown toenails from fin pressure. Swimmers with existing foot conditions should use waterproof bandages over wounds during pool use.

The Most Common Mistake We See

The biggest mistake swimmers make is ignoring early signs of plantar warts and athlete’s foot, assuming they’ll resolve on their own. Warts spread to adjacent skin and to other swimmers through pool surfaces. Fungal infections progress from simple interdigital tinea to resistant toenail fungus that takes months to treat. Early professional treatment eliminates infections quickly and reduces transmission to teammates.

Recommended Products

[object Object]

[object Object]

[object Object]

[object Object]

In-Office Treatment at Balance Foot & Ankle

Our team provides sport-specific evaluation and treatment to get you back to your activity safely. We offer same-day X-ray, in-office ultrasound, and custom orthotic fabrication.

Same-day appointments available. Call (810) 206-1402 or book online.

Frequently Asked Questions

How do swimmers get plantar warts?

Swimmers contract plantar warts from HPV exposure on contaminated pool decks, shower floors, and locker room surfaces. The virus enters through softened, macerated skin. Walking barefoot in communal wet areas is the primary risk factor. Wearing shower shoes prevents most exposure.

Can I swim with athlete’s foot?

Yes, but the chlorinated water doesn’t treat the infection and you may spread fungi on pool surfaces. Apply waterproof bandages over active blistering areas, dry feet thoroughly after swimming, and use prescribed antifungal medication consistently. Good hygiene reduces transmission risk.

Why do my feet blister from fins?

Fin blisters result from repetitive friction between the fin strap and dorsal foot skin. Contributing factors include ill-fitting fins, new fins without gradual adaptation, long fin training sessions, and macerated skin. Fin socks, proper sizing, and gradual volume increases prevent most blisters.

How do I prevent foot infections from the pool?

Wear shower shoes on all pool surfaces, dry feet completely after swimming (especially between toes), apply antifungal powder, inspect feet regularly for early infection signs, and avoid sharing towels. These simple habits prevent the vast majority of swimming-related foot infections.

The Bottom Line

Swimming-related foot conditions are common but highly preventable and treatable. Shower shoes, thorough foot hygiene, and early treatment of infections protect swimmers’ foot health. Proper fin fitting and gradual training progression prevent mechanical injuries. When conditions develop, sport-specific treatment keeps swimmers in the water with minimal interruption.

Sources

1. Journal of the American Academy of Dermatology 2024 — Swimming-associated dermatologic infections
2. Sports Medicine 2025 — Aquatic sport foot injury prevention strategies
3. British Journal of Sports Medicine 2024 — Fin-related lower extremity injuries in competitive swimmers

Swimmer’s Foot Problems: Expert Treatment

Swimmers and aquatic athletes face unique foot issues from pool decks, shared facilities, and fin use. Dr. Tom Biernacki treats plantar warts, athlete’s foot, and fin-related injuries common in swimmers.

Learn About Wart & Skin Treatment → | Book Your Appointment | Call (810) 206-1402

Clinical References

1. Mailler-Savage EA, Adams BB. “Skin manifestations of running.” J Am Acad Dermatol. 2006;55(2):290-301.
2. Tlougan BE, et al. “Aquatic sports dermatoses. Part 2 — in the water: swimmer’s itch and other aquatic dermatoses.” Int J Dermatol. 2010;49(9):994-1002.
3. Adams BB. “Dermatologic disorders of the athlete.” Sports Med. 2002;32(5):309-321.