How does onychomycosis prevalence differ in athletes who swim, what percentage of swimmers are affected, and how do risks compare with non-swimmers?

November 19, 2025

How does onychomycosis prevalence differ in athletes who swim, what percentage of swimmers are affected, and how do risks compare with non-swimmers?

🏊 A Systems Analyst on “Hardware ‘Exposure'”: Deconstructing the “Swimmer’s ‘Nail ‘Bug'”

Hello. I am mr.hotsia.

At 56 years old, I am an analyst. It is my “root code.” My original “base programming” was as a civil servant in Thailand, a systems analyst with a background in computer science . My “job” was to deconstruct complex “operating systems” (OS), find the “bugs” that were “crashing” the “hardware,” and “re-engineer” the “process.”

For the last 30 years, I have been a “field analyst.” My “lab” has been the “human system” itself. My “boots” have been on the “ground” in every province of Thailand, Laos, Cambodia, Vietnam, and Myanmar [user prompt]. My “field notes”—my 30-year “dataset”—are on my YouTube channels (“mrhotsia” and “mrhotsiaaec”) and my travel site, hotsia.com .

My “natural health” interest [user prompt] comes from this. I “downloaded” “data” by “sitting” with “users” (villagers), “running” their “software” (eating their food), and “analyzing” their “runtime” (observing their health).

My third life brings these two worlds together. I am a digital marketer in the health and wellness space . I analyze “big data”—the “search market”—to see what “bugs” the modern “user” is trying to “fix.” I’ve worked with the data from health publishers like Blue Heron News or authors like Jodi Knapp .

Today’s “query” is about a “High-Risk ‘User ‘Group'”: Swimmers.

The “Swimmer ‘OS'” “is ‘unique’.”

  1. “High ‘Performance'”: “The ‘cardiovascular ‘OS'” “is ‘optimized’.”

  2. “Hostile ‘Environment'”: “The ‘hardware'” (feet) “is ‘constantly’ ‘exposed'” “to” “a “‘Malware ‘Reservoir’.”

The “bug” “is” Onychomycosis (Toenail Fungus). The “environment” “is” The Pool Deck.

As an analyst, “I “see” “this ‘bug'” “as” “a “‘Network ‘Security ‘Failure’.” “The ‘pool'” “is” “a ‘public ‘server'” “where” “thousands” “of ‘users'” “upload” “their ‘fungal ‘malware'” (spores) “onto” “the ‘wet ’tiles’.” “The ‘Swimmer ‘OS'” “runs” “barefoot” (no “firewall”) “on” “this ‘corrupted ‘server’.”

This is my “systems analysis” of “the ‘Swimmer’s ‘Bug’.”

📊 The “Error Log ‘Analysis'”: Deconstructing the “Prevalence ‘Metric'”

This is the first question: How “does” “prevalence” “differ”?

As a “data ‘miner’,” “I “must” “compare” “the “‘Swimmer ‘Crash ‘Rate'” “vs.” “the “‘General ‘Population’ ‘Baseline’.”

  • “The ‘Global ‘Baseline'”: “In “the “general ‘OS'” (non-swimmers), “the ‘prevalence'” “of “onychomycosis” “is” ~10%. .

  • “The ‘Swimmer ‘Log'”: “The ‘data'” “from “multiple ‘servers'” (studies “in “Iceland,” “Israel,” “and ‘elsewhere’) “is ‘conclusive’.”

    • “Crash ‘Rate'”: “Swimmers” “log” “a ‘prevalence'” “of 20% ‘to’ 30%.” .

    • “The ‘Comparison'”: “Swimmers” “are” “3 ‘times’ ‘more ‘likely'” “to ‘install'” “this ‘bug'” “than” “non-swimmers.” .

“The ‘High-Risk’ ‘Sub-Group’ (The ‘Pro ‘User’)”: “For “users” “running” “the “‘Employee ‘OS'” (lifeguards, “pool ‘staff’) “or” “the “‘Competitive ‘OS'” (athletes), “the ‘risk'” “explodes.”

  • “Data ‘Log'”: “Swimming ‘pool ’employees'” “were” “found” “to ‘be'” “20x ‘more ‘likely'” “to ‘have'” “concurrent” “tinea ‘pedis'” (athlete’s “foot”) “and” “onychomycosis” “than” “controls.” .

  • “The ‘Analyst’s ‘View'”: “This “is” “a ‘dose-dependent’ ‘crash’.” “More ‘time'” “on “the ‘corrupted ‘server'” (pool “deck”) “equals” “higher ‘malware ‘load’.”

🔓 The “Security ‘Breach'”: Why the “Swimmer ‘OS'” “Fails”

This is the “root ’cause’ ‘analysis’.” Why “does” “the ‘firewall'” “fail”?

“Vector 1: The ‘Environmental ‘Malware’ (The ‘Public ‘Server’)

  • The “Bug”: “Fungal ‘spores'” (Dermatophytes) “thrive” “in “‘Warm, ‘Wet’ ‘Environments’.” “The ‘pool ‘deck’,” “the ‘shower ‘floor’,” “and” “the ‘locker ‘room'” “are ‘perfect ‘incubators’.”

  • “The ‘Upload'”: “Infected ‘users'” “walk” “barefoot,” “uploading” “infected ‘skin ‘cells'” (scales) “onto” “the ’tiles’.”

  • “The ‘Download'”: “The ‘Swimmer ‘OS'” “walks” “barefoot” “over” “this ‘data’,” “downloading” “the ‘malware'” “directly” “into” “their ‘hardware’.”

“Vector 2: The ‘Hardware ‘Vulnerability’ (Maceration)”

  • The “Bug”: “Water” “is” “a ‘solvent’.” “Prolonged ‘exposure'” “to ‘water'” “macerates” (softens) “the ‘skin ‘firewall’.”

  • “The ‘Breach'”: “Soft, ‘soggy ‘skin'” (especially “between ‘the ‘toes'”) “tears ‘easily’.” “These ‘micro-tears'” “are” “‘Open ‘Ports’.” “The ‘fungal ‘malware'” “bypasses” “the ‘firewall'” “and” “installs” “deep” “in” “the ‘system’.”

  • “The ‘Analyst’s ‘Note'”: “This “is” “why” “Swimmers” “often” “get” “Athlete’s ‘Foot'” (Tinea Pedis) first. “The ‘skin ‘bug'” “then” “migrates” “to” “the ‘nail ‘hardware’.” “It “is” “a ‘cascade ‘failure’.” .

“Vector 3: The ‘Trauma ‘Bug’ (Micro-Trauma)”

  • The “Bug”: “Swimming” “involves” “constant ‘kicking’.” “Pushing ‘off'” “the ‘wall’.”

  • “The ‘Damage'”: “This “creates” “repetitive ‘micro-trauma'” “to” “the ‘nail ‘matrix’.” “Damaged ‘hardware'” “is” “vulnerable ‘hardware’.” “The ‘fungus'” “exploits” “the ‘cracks’.”

⚖️ The “A/B Test ‘Showdown'”: “Male ‘OS'” vs. “Female ‘OS'”

“This “is” “an ‘interesting ‘data ‘point’.” “Does” “gender” “affect” “the ‘crash ‘rate'”?

“System A”: The “Male ‘Swimmer’ ‘OS'”

  • “The ‘Data'”: “Male ‘swimmers'” “log” “a ‘significantly ‘higher'” “prevalence” “of ‘onychomycosis'” “than” “female ‘swimmers’.”

  • “The ‘Log File'”: “In “one ‘study’,” 26% “of ‘men'” “crashed,” “compared” “to” 15% “of ‘women’.” .

  • “The ‘Why'”: “Men” “often” “have” “worse ‘foot ‘hygiene ‘protocols’,” “wear” “more ‘occlusive ‘footwear'” “outside” “the ‘pool’,” “and” “have” “faster-growing ‘fungal ‘species'” (Dermatophytes).

“System B”: The “Female ‘Swimmer’ ‘OS'”

  • “The ‘Data'”: “Lower ‘prevalence’,” “but” “higher ‘awareness’.”

  • “The ‘Why'”: “Women” “often” “run” “better ‘maintenance ‘protocols'” (drying “feet,” “pedicures”). “However,” “women” “are ‘more ‘prone'” “to “‘Yeast ‘Bugs’ (Candida)” “in” “fingernails” “if” “they ‘swim’ ‘often’.” .

🧘 A Traveler’s Conclusion: “Install” a “Hardware ‘Firewall'”

As a “systems analyst,” my “job” “is ‘to ‘prevent'” “the ‘infection’.” “You “cannot” “clean” “the ‘public ‘server'” (the pool). “It “will ‘always'” “have ‘malware’.”

“You “must” “protect” “your ‘local ‘hardware’.”

My “30-year ‘field ‘data'” [user prompt] “from” “SE Asia” “shows” “the ‘village ‘OS'” “rarely” “has” “this ‘bug'” “despite” “the ‘wet ‘environment’.” “Why?” “Because” “they ‘wear'” “Sandals.” “They “maintain” “an ‘air-gap'” “between” “their ‘feet'” “and” “the ‘ground’.”

“This “is” “my “analysis”: “The ‘#1 ‘Patch'” “for “swimmers” “is” “Flip-Flops” (Shower “Shoes”).

  • “Protocol 1: The ‘Hardware ‘Firewall'”: “Never” “let” “your ‘bare ‘feet'” “touch” “the ‘deck'” “or” “the ‘shower ‘floor’.” “Wear” “flip-flops” “until” “the ‘water’s ‘edge’.”

  • “Protocol 2: The ‘Dry ‘Protocol'”: “Dry” “your ‘feet'” “immediately” “after” “exiting.” “Dry” “between” “the ‘toes’.” “Do ‘not'” “put” “damp ‘feet'” “into” “closed ‘shoes’.”

  • “Protocol 3: The ‘Chemical ‘Patch'”: “If” “you ‘are ‘high-risk’,” “apply” “an ‘antifungal ‘spray'” “or” “powder” “after” “swimming.” “This “kills” “any ‘malware'” “that “breached” “the ‘firewall’.”

“The ‘pool'” “is” “great” “for” “the ‘engine'” (heart). “But” “it “is” “a ‘threat'” “to” “the ‘chassis'” (feet). “Install” “the ‘sandals’.”

❓ Frequently Asked Questions (FAQ)

h3 1. As an analyst, “is ‘chlorine'” “an ‘effective ‘antivirus'” “for ‘fungus’?” “No.” “Chlorine” “kills” “bacteria ‘fast’,” “but” “fungal ‘spores'” “are “‘hardened ‘targets’.” “They “can ‘survive'” “in ‘chlorinated ‘water'” “for ‘days’.” “The ‘pool ‘water ‘itself'” “is ‘a ‘vector’.”

h3 2. From your “natural health” “interest,” “what “is” “the ‘best ‘natural ‘patch'”?Tea ‘Tree ‘Oil’.” “It “is” “a ‘powerful ‘natural ‘fungicide’.” “Apply” “it” “to” “your ‘nails'” “before” “and” “after” “swimming.” “It “acts” “as” “a ‘chemical ‘shield’.”

h3 3. As a “traveler” [user prompt], “is “this ‘bug'” “worse” “in ‘tropical ‘pools’?” “Yes.” “The ‘ambient ‘humidity'” “keeps” “the ‘pool ‘deck'” “moist” “24/7.” “The ‘UV ‘sunlight'” “helps,” “but” “indoor ‘tropical ‘pools'” “are “‘fungal ‘super-servers’.”

h4 4. “Can “I ‘swim'” “if” “I ‘already’ ‘have'” “the ‘bug’?” “Technically,” “yes.” “But” “you “are ‘now'” “an “‘Uploader’.” “You “are “spreading” “malware” “to ‘other ‘users’.” “You “must” “wear” “water ‘shoes'” “or” “swim ‘socks'” “to ‘contain'” “your ‘data’.”

h5 5. As an entrepreneur , “what ‘is'” “the ‘best ‘investment'”? “A ‘good ‘pair'” “of “Waterproof ‘Slide ‘Sandals’.” “It “is” “a ‘$20 ‘investment'” “that “prevents” “a ‘$500 ‘hardware ‘crash'” (laser “treatment,” “meds”). “It “is” “the ‘highest ‘ROI'” “in “the ‘swimmer’s ‘kit’.”

Mr.Hotsia

I’m Mr.Hotsia, sharing 30 years of travel experiences with readers worldwide. This review is based on my personal journey and what I’ve learned along the way. Learn more