has part has part characteristic of inheres in has modifier Sparse hair 2008-04-02T04:11:00Z UMLS:C0020678 Decreased hair growth Hypotrichosis Sparse hair since birth Reduced density of hairs. Thin, sparse hair This term applies if the number of hair shafts per unit area is reduced. The term fine hair is used to describe hair with a reduced diameter. UMLS:C1837770 SNOMEDCT_US:53602002 HP:0004522 HP:0004525 UMLS:C1860844 HP:0002551 SNOMEDCT_US:56558005 HP:0002291 HP:0008070 Marked hypotrichosis MEDDRA:10021126 Decreased hair growth on body Sparse hair HP:0004538 HP:0001006 HP:0004874 HP:0002237 Abnormal hair quantity abnormal sparse strand of hair