Rare diseases · Sign or symptom
Aplasia/Hypoplasia of the eyebrow
HP:0100840
What it means
Absence or underdevelopment of the eyebrow.
Rare diseases that can present with this37
Very common80–99%
19- Acrofrontofacionasal dysostosis
- Agnathia-holoprosencephaly-situs inversus syndrome
- Alopecia antibody deficiency
- Alopecia-intellectual disability syndrome
- AREDYLD syndrome
- Atypical Werner syndrome
- Barber-Say syndrome
- Bartsocas-Papas syndrome
- Björnstad syndrome
- Cardiofaciocutaneous syndrome
- Distal Xq28 microduplication syndrome
- Ectodermal dysplasia-intellectual disability-central nervous system malformation syndrome
- Intellectual disability-polydactyly-uncombable hair syndrome
- Marie Unna hereditary hypotrichosis
- Paternal 20q13.2q13.3 microdeletion syndrome
- Pili torti-developmental delay-neurological abnormalities syndrome
- Trichodermodysplasia-dental alterations syndrome
- Woodhouse-Sakati syndrome
- X-linked hypohidrotic ectodermal dysplasia
Common30–79%
16- Cleft lip/palate-ectodermal dysplasia syndrome
- Cronkhite-Canada syndrome
- Ectodermal dysplasia, trichoodontoonychial type
- Frontofacionasal dysplasia
- Hypohidrotic ectodermal dysplasia
- Jacobsen syndrome
- Lamellar ichthyosis
- Microcephalic osteodysplastic primordial dwarfism type II
- Nager syndrome
- Noonan syndrome-like disorder with loose anagen hair
- Oculomaxillofacial dysostosis
- Ogden syndrome
- Omenn syndrome
- Rothmund-Thomson syndrome type 2
- Schöpf-Schulz-Passarge syndrome
- X-linked mandibulofacial dysostosis
The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.
Part of the broader category
Also called: Sparse or absent eyebrows · Sparse to absent eyebrows · Sparse/absent eyebrows
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Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.