Human Phenotype Ontology 
Grandparent Node:
Abnormality of the nail (HP:0001597)help
Parent Node:
Abnormal toenail morphology (HP:0008388)help
Parent Node:
Thin nail (HP:0001816)help
..Starting node
Thin toenail (HP:0012746)help
Term ID: 12746
Name: Thin toenail
Synonym: Thin toenail; Thin toenails
Definition: Toenail that appears thin when viewed on end.
Reference: HP:0012746
Genes and Diseases:
       Child Nodes:

 Sister Nodes: 
..expandThin fingernail (HP:0012742) 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:0012746HP:0012746Thin toenail0MSX1 CL E G H44877391ORPHA:2228Hypodontia-dysplasia of nails syndromeHP:0040281 - Very frequent12

Genes (1) :MSX1

Diseases (1) :ORPHA:2228

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