Monarch Disease Ontology term MONDO_0014989 (uncombable hair syndrome 2) is any uncombable hair syndrome in which the cause of the disease is a mutation in the TGM3 gene. Also known as: TGM3 uncombable hair syndrome, UHS2, uncombable hair syndrome 2; UHS2, uncombable hair syndrome caused by mutation in TGM3, uncombable hair syndrome type 2.