{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.nail-disease","code":"thing-q2084035","url":"https://ver.cy/models/thing/q2084035/","name":"nail disease","alternateNames":["neoplasm of the nailbed","onychocytic matricoma","nail discoloration","Purpura of the nail bed","deafness-onychodystrophy syndrome","accessory nail of the fifth toe","curved nail of fourth toe","double fingernail of fifth finger","nonsyndromic congenital nail disorder","dolichonychia","polyonychia","exposed nail bed"],"kind":"thing","status":"published","version":"0.2.0-wave.2","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"thing","plane":"XCT","domain":["XCT.STA"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Any disorder affecting the fingernails or toenails, including infections such as fungal nail disease, inflammatory conditions such as psoriasis, injuries, discoloration, growth abnormalities, tumours of the nail bed and rare inherited syndromes; nail changes can also signal systemic disease and are assessed by dermatologists and podiatrists.","purpose":"Let an agent give general information on nail diseases, recognise changes that need assessment, explain common conditions and their care, and point to appropriate professionals without diagnosis.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Affects nail unit","Infectious, inflammatory, traumatic or systemic","Often chronic","Can signal systemic disease"],"structure":{"bundles":[{"id":"assess","name":"Assess","description":"Changes to check.","layers":[{"id":"warning","name":"Warning","description":"Serious signs.","findings":[{"id":"warning-finding","name":"Warning","description":"Serious signs.","questions":[{"text":"Is there a dark streak, rapid change, bleeding or severe pain suggesting melanoma or serious infection?","kind":"boundary"},{"text":"Should the person see a doctor promptly?","kind":"action"}]}]},{"id":"systemic","name":"Systemic","description":"Signs of other disease.","findings":[{"id":"systemic-finding","name":"Systemic","description":"Systemic signs.","questions":[{"text":"Could nail changes such as clubbing or spooning indicate a systemic condition, according to medical sources?","kind":"provenance"},{"text":"Is the user asking for a diagnosis of their own nails?","kind":"boundary"}]}]}]},{"id":"conditions","name":"Conditions","description":"Common conditions.","layers":[{"id":"common","name":"Common","description":"Frequent nail diseases.","findings":[{"id":"common-finding","name":"Common","description":"Common conditions.","questions":[{"text":"What are common nail conditions such as fungal infection, psoriasis and ingrown nails, in general terms?","kind":"definition"},{"text":"How are they diagnosed?","kind":"provenance"}]}]},{"id":"rare","name":"Rare","description":"Rare and inherited.","findings":[{"id":"rare-finding","name":"Rare","description":"Rare conditions.","questions":[{"text":"What is known about this rare or inherited nail disorder, according to medical genetics sources?","kind":"provenance"},{"text":"Which specialist should be consulted?","kind":"provenance"}]}]}]},{"id":"care","name":"Care","description":"Treatment and prevention.","layers":[{"id":"treatment","name":"Treatment","description":"Treatment options.","findings":[{"id":"treatment-finding","name":"Treatment","description":"Treatment options.","questions":[{"text":"Which treatments are used for this condition, in general terms, and how effective are they?","kind":"provenance"},{"text":"Which questions should be asked of a dermatologist or podiatrist?","kind":"action"}]}]},{"id":"prevention","name":"Prevention","description":"Nail care.","findings":[{"id":"prevention-finding","name":"Prevention","description":"Prevention.","questions":[{"text":"How can nail disease be prevented through hygiene and footwear, according to health guidance?","kind":"provenance"},{"text":"Which salon hygiene practices matter?","kind":"provenance"}]}]}]},{"id":"professionals","name":"Professionals","description":"Getting help.","layers":[{"id":"who","name":"Who","description":"Which professional.","findings":[{"id":"who-finding","name":"Who","description":"Professionals.","questions":[{"text":"Should the person see a doctor, dermatologist or podiatrist for this concern?","kind":"action"},{"text":"How can one be found here?","kind":"provenance"}]}]},{"id":"cosmetic","name":"Cosmetic","description":"Cosmetic damage.","findings":[{"id":"cosmetic-finding","name":"Cosmetic","description":"Cosmetic damage.","questions":[{"text":"Is the change due to nail products or procedures rather than disease?","kind":"boundary"},{"text":"How can nails recover?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Give general information on nail conditions and when to see a clinician.","Flag signs that need prompt care, such as a dark streak under a nail or signs of spreading infection."],"mustNot":["Diagnose a nail disease from a photo or description.","Recommend prescription antifungals or other medicines for a specific person.","Treat a dark nail streak as harmless when it could be melanoma.","Share images of a person's hands or feet without consent."],"requiresHuman":["Any treatment decision for a person's nail condition.","Nail procedures for people with diabetes or poor circulation."]},"ethics":{"considerations":["Nail changes can be signs of serious disease; false reassurance can delay diagnosis.","Visible nail conditions carry stigma and embarrassment."],"affectedParties":["People with nail conditions","People with diabetes","Nail technicians"]},"owners":{"steward":"The person and their clinician.","roles":[],"masterSystems":[]},"relations":[{"target":"Q18554850","type":"parent","note":"registry parent class"},{"target":"integumentary system disease","type":"related","note":"category"},{"target":"health care","type":"related","note":"services"},{"target":"cosmetics","type":"related","note":"nail products"},{"target":"anemia","type":"related","note":"systemic signs in nails"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.nail-disease","Wikidata: Q2084035 (https://www.wikidata.org/wiki/Q2084035)"]},"properties":{"applicability":"not-applicable","items":[]},"recognition":{"applicability":"optional","items":["Discoloration, thickening, pitting or separation","Infections and inflammatory changes","Cosmetic nail damage from products is different from disease","Changes in nail colour, shape, thickness or attachment."]},"capabilities":{"applicability":"required","items":["describe common nail conditions in general terms","recognise changes needing assessment","explain care and prevention","find appropriate professionals"]},"hazards":{"applicability":"required","items":["Missing melanoma of the nail","Agents diagnosing","Infections from unhygienic nail services"]},"interfaces":{"applicability":"required","items":["Dermatology and podiatry clinical guidelines","Hygiene rules for nail salons"]},"context":{"applicability":"required","items":["Nail health and dermatology.","fungal and bacterial nail infections","inflammatory nail disease such as psoriasis","traumatic nail conditions","nail tumours","inherited and syndromic nail disorders"]}},"sources":[{"title":"Wikidata item Q2084035: nail disease","url":"https://www.wikidata.org/wiki/Q2084035","note":"identity and sense of the item"},{"title":"Wikipedia: Nail disease","url":"https://en.wikipedia.org/wiki/Nail_disease","note":"general description of the item"}],"openQuestions":["Should each condition be a separate entry?","How should guidelines be linked?","How should salon hygiene rules be localised?"],"resources":{"spec":"/models/things/publications/thing-q2084035/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q2084035/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T19:59:16Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:56+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane XCT: no invented physical properties."},"score":1.0}}