Human Phenotype Ontology 
Grandparent Node:
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Abnormality of skin adnexa morphology (HP:0011138)help
Parent Node:
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Abnormality of the nail (HP:0001597)help
..Starting node
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Fragile nails (HP:0001808)help
Term ID: 1808
Name: Fragile nails
Synonym: Brittle nails
Definition: Nails that easily break.
Comments:
Reference: HP:0001808
Genes and Diseases:
 
       Child Nodes:

 Sister Nodes: 
..expandAbnormal fingernail morphology (HP:0001231) help
..expandAbnormal nail growth (HP:0030807) help
..expandAbnormal toenail morphology (HP:0008388) help
..expandAbnormality of nail color (HP:0100643) help
..expandAbnormality of the periungual region (HP:0100803) help
..expandAbnormality of the subungual region (HP:0009723) help
..expandAbsent lunula (HP:0030805) help
..expandAplasia/Hypoplasia of the nails (HP:0008386) help
..expandBeaked nails (HP:0030817) help
..expandChronic monilial nail infection (HP:0008396) help
..expandIngrown nail (HP:0012710) help
..expandNail bed hemorrhage (HP:0030254) help
..expandNail bed telangiectasia (HP:0001232) help
..expandNail dysplasia (HP:0002164) help
..expandNail dystrophy (HP:0008404) help
..expandNeoplasm of the nail (HP:0100826) help
..expandOnychogryposis (HP:0001805) help
..expandOnycholysis (HP:0001806) help
..expandPterygium of nails (HP:0002165) help
..expandPyramidal skinfold extending from the base to the top of the nails (HP:0009758) help
..expandRagged cuticle (HP:0030808) help
..expandRecurrent loss of toenails and fingernails (HP:0008390) help
..expandSki jump nail (HP:0030819) help
..expandThin nail (HP:0001816) help
InputHPO IDHPO termDistanceGeneGene id entrezHGNC IDDiseaseIdDiseaseNameFrequencyOnsetHGMD variantsClinVar variants
 
HPO disease - gene - phenotype typical associations:
 
HPO disease - gene - phenotype less frequent non-typical associations:
HP:0001808HP:0001808Fragile nails0AP1B1 CL E G H162554OMIM:242150Ichthyosiform erythroderma, corneal involvement, and deafness.
HP:0001808HP:0001808Fragile nails0ATP6V0A2 CL E G H2354518481OMIM:278250Wrinkly skin syndrome.140
HP:0001808HP:0001808Fragile nails0CAMK2G CL E G H8181463OMIM:618522Intellectual developmental disorder 59HP:0040284 - Very rare1
HP:0001808HP:0001808Fragile nails0CARS1 CL E G H8331493ORPHA:33364TrichothiodystrophyHP:0040283 - Occasional
HP:0001808HP:0001808Fragile nails0COL7A1 CL E G H12942214ORPHA:158676Localized dystrophic epidermolysis bullosa, nails onlyHP:0040281 - Very frequent263
HP:0001808HP:0001808Fragile nails0DLX3 CL E G H17472916ORPHA:3352Tricho-dento-osseous syndromeHP:0040282 - Frequent48
HP:0001808HP:0001808Fragile nails0DLX3 CL E G H17472916OMIM:190320Trichodentoosseous syndrome.48
HP:0001808HP:0001808Fragile nails0DSP CL E G H18323052OMIM:615821Cardiomyopathy, dilated, with woolly hair, keratoderma, and tooth agenesisHP:0040283 - Occasional747
HP:0001808HP:0001808Fragile nails0EFNB1 CL E G H19473226OMIM:304110Craniofrontonasal syndrome.27
HP:0001808HP:0001808Fragile nails0ERCC2 CL E G H20683434ORPHA:33364TrichothiodystrophyHP:0040283 - Occasional106
HP:0001808HP:0001808Fragile nails0ERCC2 CL E G H20683434OMIM:601675Trichothiodystrophy 1, photosensitive.106
HP:0001808HP:0001808Fragile nails0ERCC3 CL E G H20713435ORPHA:33364TrichothiodystrophyHP:0040283 - Occasional54
HP:0001808HP:0001808Fragile nails0FTL CL E G H25123999ORPHA:254704Genetic hyperferritinemia without iron overloadHP:0040283 - Occasional33
HP:0001808HP:0001808Fragile nails0GJA1 CL E G H26974274OMIM:164200Oculodentodigital dysplasia.68
HP:0001808HP:0001808Fragile nails0GTF2E2 CL E G H29614651ORPHA:33364TrichothiodystrophyHP:0040283 - Occasional2
HP:0001808HP:0001808Fragile nails0GTF2H5 CL E G H40467221157ORPHA:33364TrichothiodystrophyHP:0040283 - Occasional3
HP:0001808HP:0001808Fragile nails0HEPHL1 CL E G H34120830477OMIM:261990PILI TORTI AND DEVELOPMENTAL DELAY
HP:0001808HP:0001808Fragile nails0HRAS CL E G H32655173OMIM:218040Costello syndrome.113
HP:0001808HP:0001808Fragile nails0KRT14 CL E G H38616416OMIM:161000Naegeli syndrome.110
HP:0001808HP:0001808Fragile nails0KRT14 CL E G H38616416ORPHA:69087Naegeli-Franceschetti-Jadassohn syndrome110
HP:0001808HP:0001808Fragile nails0LAMB3 CL E G H39146490OMIM:226650Epidermolysis bullosa, junctional, Non-Herlitz type.167
HP:0001808HP:0001808Fragile nails0LMNA CL E G H40006636ORPHA:79474Atypical Werner syndromeHP:0040281 - Very frequent645
HP:0001808HP:0001808Fragile nails0MPLKIP CL E G H13664716002ORPHA:33364TrichothiodystrophyHP:0040283 - Occasional9
HP:0001808HP:0001808Fragile nails0MSX1 CL E G H44877391ORPHA:2228Hypodontia-dysplasia of nails syndromeHP:0040281 - Very frequent12
HP:0001808HP:0001808Fragile nails0PRKD1 CL E G H55879407OMIM:617364Congenital heart defects and ectodermal dysplasia.7
HP:0001808HP:0001808Fragile nails0RNF113A CL E G H773712974ORPHA:33364TrichothiodystrophyHP:0040283 - Occasional3
HP:0001808HP:0001808Fragile nails0SIN3A CL E G H2594219353ORPHA:500166SIN3A-related intellectual disability syndrome due to a point mutationHP:0040283 - Occasional9
HP:0001808HP:0001808Fragile nails0SIN3A CL E G H2594219353OMIM:613406Witteveen-Kolk syndrome9
HP:0001808HP:0001808Fragile nails0SIN3B CL E G H2330919354ORPHA:500166SIN3A-related intellectual disability syndrome due to a point mutationHP:0040283 - Occasional
HP:0001808HP:0001808Fragile nails0SLURP1 CL E G H5715218746OMIM:248300Meleda disease.15
HP:0001808HP:0001808Fragile nails0SMARCD2 CL E G H660311107OMIM:617475SPECIFIC GRANULE DEFICIENCY 2; SGD23
HP:0001808HP:0001808Fragile nails0TARS1 CL E G H689711572ORPHA:33364TrichothiodystrophyHP:0040283 - Occasional
HP:0001808HP:0001808Fragile nails0TRPS1 CL E G H722712340ORPHA:77258Trichorhinophalangeal syndrome type 1 and 3HP:0040282 - Frequent171


Genes (29) :AP1B1 ATP6V0A2 CAMK2G CARS1 COL7A1 DLX3 DSP EFNB1 ERCC2 ERCC3 FTL GJA1 GTF2E2 GTF2H5 HEPHL1 HRAS KRT14 LAMB3 LMNA MPLKIP MSX1 PRKD1 RNF113A SIN3A SIN3B SLURP1 SMARCD2 TARS1 TRPS1

Diseases (25) :OMIM:242150 OMIM:278250 OMIM:618522 ORPHA:33364 ORPHA:158676 ORPHA:3352 OMIM:190320 OMIM:615821 OMIM:304110 OMIM:601675 ORPHA:254704 OMIM:164200 OMIM:261990 OMIM:218040 OMIM:161000 ORPHA:69087 OMIM:226650 ORPHA:79474 ORPHA:2228 OMIM:617364 ORPHA:500166 OMIM:613406 OMIM:248300 OMIM:617475 ORPHA:77258
 

Human Phenotype Ontology(HPO) is developed by the Human Phenotype Ontology Consortium. The version used here is December 15 2022 release.