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Ohdo blepharophimosis syndrome (OBS) is a multiple congenital malformation syndrome characterized by blepharophimosis, ptosis, dental hypoplasia, hearing impairment and intellectual disability.
Features include very common findings: Hearing loss (hearing impairment), Small scrotum, Blepharophimosis, and Microtia and others; and common findings: Cleft palate, Atrial septal defect, Multiple bladder diverticula, and Neonatal asphyxia. 48 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 5 | Seizure, Intellectual disability, Depressed nasal bridge |
Phenotype severity distribution: 22 very common features, 4 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
1 clinical trial registered, 1 recruiting. Interventions under study include other interventions. Research is primarily sponsored by academic and government institutions.
8 publications have been identified in PubMed for blepharophimosis - intellectual disability syndrome, Ohdo type. Research spans Basic Science / Preclinical (50%), Case Report / Case Series (25%), and Review / Meta-Analysis (13%).
Warmoeskerken T (2026). [PMID: 41821414](https://pubmed.ncbi.nlm.nih.gov/41821414/). *Am J Med Genet A*. [Epidemiology / Natural History]
Kao EC (2025). [PMID: 39215511](https://pubmed.ncbi.nlm.nih.gov/39215511/). *Am J Med Genet A*. [Case Report / Case Series]
Ura H (2025). [PMID: 39986017](https://pubmed.ncbi.nlm.nih.gov/39986017/). *Stem Cell Res*. [Basic Science / Preclinical]
Bergamasco MI (2025). [PMID: 39832706](https://pubmed.ncbi.nlm.nih.gov/39832706/). *Dev Biol*. [Basic Science / Preclinical]
Ura H (2025). [PMID: 39986018](https://pubmed.ncbi.nlm.nih.gov/39986018/). *Stem Cell Res*. [Basic Science / Preclinical]
Data assembled from 6 of 12 sources · Last updated Sep 20, 2026, 3:08 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Growth and development |
3 |
Short stature, Intrauterine growth retardation, Postnatal growth retardation |
Ears | 2 | Hearing loss (hearing impairment), Recurrent otitis media |
Muscles | 2 | Low muscle tone (hypotonia), Generalized hypotonia |
Arms and legs | 2 | Abnormal foot morphology, Clinodactyly of the 5th finger |
Eyes | 2 | Ptosis, Amblyopia |
Head and neck | 2 | Microcephaly, Cleft palate |
Heart and blood vessels | 2 | Heart murmur, Atrial septal defect |
Digestive system | 1 | Feeding difficulties in infancy |
Bones and joints | 1 | Joint hypermobility |
Kidneys and urinary system | 1 | Protein in the urine (proteinuria) |
Skin | 1 | Abnormal palmar dermatoglyphics |
Pregnancy and birth | 1 | Neonatal asphyxia |
Horsthemke B (2024). [PMID: 38854642](https://pubmed.ncbi.nlm.nih.gov/38854642/). *Med Genet*. [Review / Meta-Analysis]
Togi S (2024). [PMID: 38655688](https://pubmed.ncbi.nlm.nih.gov/38655688/). *Am J Med Genet A*. [Case Report / Case Series]
Ura H (2024). [PMID: 38492468](https://pubmed.ncbi.nlm.nih.gov/38492468/). *Stem Cell Res*. [Basic Science / Preclinical]