O - Health Conditions - Genetics Home Reference - NIH

O - Health Conditions - Genetics Home Reference - NIH

Health Conditions

Explore the signs and symptoms, genetic cause, and inheritance pattern of various health conditions.

• OA, see Ocular albinism
• OA, see Osteoarthritis
• OAS, see Ophthalmo-acromelic syndrome
• OAT deficiency, see Gyrate atrophy of the choroid and retina
• OAV complex, see Craniofacial microsomia
• OAVS, see Craniofacial microsomia
• Oberklaid-Danks syndrome, see Bohring-Opitz syndrome
• obesity due to congenital leptin deficiency, see Congenital leptin deficiency
• obesity due to leptin receptor gene deficiency, see Leptin receptor deficiency
• obesity, early-onset, adrenal insufficiency, and red hair, see Proopiomelanocortin deficiency
• obesity, morbid, due to leptin deficiency, see Congenital leptin deficiency
• obesity, morbid, due to leptin receptor deficiency, see Leptin receptor deficiency
• obesity, morbid, nonsyndromic 1, see Congenital leptin deficiency
• obesity, morbid, nonsyndromic 2, see Leptin receptor deficiency
• obesity, severe, due to leptin deficiency, see Congenital leptin deficiency
• obesity-hypotonia syndrome, see Cohen syndrome
• Obsessive-compulsive disorder
• obsessive-compulsive neurosis, see Obsessive-compulsive disorder
• obstetric cholestasis, see Intrahepatic cholestasis of pregnancy
• obstructive apnea, see Obstructive sleep apnea
• obstructive disease of the pulmonary veins, see Pulmonary veno-occlusive disease
• Obstructive sleep apnea
• obstructive sleep apnea syndrome, see Obstructive sleep apnea
• OCA, see Oculocutaneous albinism
• occlusive infantile arteriopathy, see Generalized arterial calcification of infancy
• occupational cramp, see Task-specific focal dystonia
• occupational dystonia, see Task-specific focal dystonia
• OCD, see Familial osteochondritis dissecans
• OCD, see Obsessive-compulsive disorder
• Ochoa syndrome
• Ocular albinism
• ocular coloboma, see Coloboma
• ocular retraction syndrome, see Isolated Duane retraction syndrome
• ocular rosacea, see Rosacea
• oculo-dento-digital dysplasia, see Oculodentodigital dysplasia
• oculo-dento-osseous dysplasia, see Oculodentodigital dysplasia
• oculo-digito-esophagoduodental (ODED) syndrome, see Feingold syndrome
• Oculo-facio-cardio-dental syndrome, see Oculofaciocardiodental syndrome
• oculo-oto-facial dysplasia, see Burn-McKeown syndrome
• oculo-skeletal-abdominal syndrome, see 3MC syndrome
• oculoauriculovertebral spectrum, see Craniofacial microsomia
• oculocerebrofacial syndrome, Kaufman type, see Kaufman oculocerebrofacial syndrome
• oculocerebrorenal syndrome, see Lowe syndrome
• oculocerebrorenal syndrome of Lowe, see Lowe syndrome
• Oculocutaneous albinism
• oculocutaneous albinism with leukocyte defect, see Chediak-Higashi syndrome
• Oculodentodigital dysplasia
• oculodentodigital syndrome, see Oculodentodigital dysplasia
• oculodentoosseous dysplasia, see Oculodentodigital dysplasia
• Oculofaciocardiodental syndrome
• Oculogastrointestinal muscular dystrophy, see Mitochondrial neurogastrointestinal encephalopathy disease
• oculootofacial dysplasia, see Burn-McKeown syndrome
• oculopalatoskeletal syndrome, see 3MC syndrome
• oculopharyngeal dystrophy, see Oculopharyngeal muscular dystrophy
• Oculopharyngeal muscular dystrophy
• oculosympathetic palsy, see Horner syndrome
• OD, see Familial osteochondritis dissecans
• ODD syndrome, see Oculodentodigital dysplasia
• ODDD, see Oculodentodigital dysplasia
• ODOD, see Oculodentodigital dysplasia
• odontoleukodystrophy, see Pol III-related leukodystrophy
• oestrogen synthetase deficiency, see Aromatase deficiency
• OFCD syndrome, see Oculofaciocardiodental syndrome
• OFDS, see Oral-facial-digital syndrome
• OGD, see Osteoglophonic dysplasia
• OGIMD, see Mitochondrial neurogastrointestinal encephalopathy disease
• Ohaha syndrome, see Infantile-onset spinocerebellar ataxia
• Ohdo syndrome, Maat-Kievit-Brunner type
• Ohdo syndrome, MKB type, see Ohdo syndrome, Maat-Kievit-Brunner type
• Ohdo syndrome, Say-Barber-Biesecker variant, see Ohdo syndrome, Say-Barber-Biesecker-Young-Simpson variant
• Ohdo syndrome, Say-Barber-Biesecker-Young-Simpson variant
• Ohdo syndrome, SBBYS variant, see Ohdo syndrome, Say-Barber-Biesecker-Young-Simpson variant
• OI, see Osteogenesis imperfecta
• Okihiro syndrome, see Duane-radial ray syndrome
• OKS, see FG syndrome
• OKT deficiency, see Gyrate atrophy of the choroid and retina
• Old Silk Route disease, see Behçet disease
• old-aged sensorineural hearing impairment, see Age-related hearing loss
• Oligophrenia microphthalmus, see Norrie disease
• olivopontocerebellar atrophy I, see Spinocerebellar ataxia type 1
• Ollier disease
• Ollier's syndrome, see Ollier disease
• Omenn syndrome
• Omenn's syndrome, see Omenn syndrome
• omphalocele, see Abdominal wall defect
• ONCR, see Renal coloboma syndrome
• Ondine Syndrome, see Congenital central hypoventilation syndrome
• Ondine-Hirschsprung disease, see Congenital central hypoventilation syndrome
• onychauxis, hyponychia, and onycholysis, see Nonsyndromic congenital nail disorder 10
• OOFD, see Burn-McKeown syndrome
• OPA3 defect, see Costeff syndrome
• OPCA, see Multiple system atrophy
• OPCH, see Pontocerebellar hypoplasia
• OPD syndrome, type 1, see Otopalatodigital syndrome type 1
• OPD syndrome, type 2, see Otopalatodigital syndrome type 2
• open spine, see Spina bifida
• Ophthalmo-acromelic syndrome
• ophthalmoacromelic syndrome, see Ophthalmo-acromelic syndrome
• ophthalmoplegia, hypotonia, ataxia, hypacusis, and athetosis, see Infantile-onset spinocerebellar ataxia
• ophthalmoplegia, progressive external, and scoliosis, see Horizontal gaze palsy with progressive scoliosis
• opiate addiction, see Opioid addiction
• opiate dependence, see Opioid addiction
• Opioid addiction
• opioid dependence, see Opioid addiction
• Opitz BBB syndrome, see Opitz G/BBB syndrome
• Opitz BBB/G syndrome, see Opitz G/BBB syndrome
• Opitz G syndrome, see Opitz G/BBB syndrome
• Opitz G/BBB syndrome
• Opitz syndrome, see Opitz G/BBB syndrome
• Opitz trigonocephaly-like syndrome, see Bohring-Opitz syndrome
• Opitz-Frias syndrome, see Opitz G/BBB syndrome
• Opitz-Kaveggia syndrome, see FG syndrome
• OPMD, see Oculopharyngeal muscular dystrophy
• Oppenheim dystonia, see Early-onset primary dystonia
• Oppenheim's dystonia, see Early-onset primary dystonia
• OPPG, see Osteoporosis-pseudoglioma syndrome
• optic atrophy plus syndrome, see Costeff syndrome
• Optic atrophy type 1
• optic atrophy, autosomal dominant, see Optic atrophy type 1
• optic atrophy, hereditary, autosomal dominant, see Optic atrophy type 1
• optic atrophy, juvenile, see Optic atrophy type 1
• optic atrophy, Kjer type, see Optic atrophy type 1
• optic coloboma, vesicoureteral reflux, and renal anomalies, see Renal coloboma syndrome
• optic nerve coloboma renal syndrome, see Renal coloboma syndrome
• optic-spinal MS, see Neuromyelitis optica
• opticoacoustic nerve atrophy with dementia, see Deafness-dystonia-optic neuronopathy syndrome
• opticospinal MS, see Neuromyelitis optica
• Oral-facial-digital syndrome
• oral-mandibular-auricular syndrome, see Craniofacial microsomia
• ORAS, see Otulipenia
• Ormond disease, see Retroperitoneal fibrosis
• Ormond's disease, see Retroperitoneal fibrosis
• ornithine aminotransferase deficiency, see Gyrate atrophy of the choroid and retina
• Ornithine Carbamoyltransferase Deficiency Disease, see Ornithine transcarbamylase deficiency
• ornithine keto acid aminotransferase deficiency, see Gyrate atrophy of the choroid and retina
• Ornithine transcarbamylase deficiency
• Ornithine translocase deficiency
• ornithine-delta-aminotransferase deficiency, see Gyrate atrophy of the choroid and retina
• Ornithinemia with gyrate atrophy, see Gyrate atrophy of the choroid and retina
• oro-facio-digital syndrome, see Oral-facial-digital syndrome
• orodigitofacial dysostosis, see Oral-facial-digital syndrome
• orodigitofacial syndrome, see Oral-facial-digital syndrome
• orofaciodigital syndrome, see Oral-facial-digital syndrome
• OSA, see Obstructive sleep apnea
• OSA syndrome, see 3MC syndrome
• OSAHS, see Obstructive sleep apnea
• OSAS, see Obstructive sleep apnea
• Osler-Vaquez disease, see Polycythemia vera
• Osler-Weber-Rendu syndrome, see Hereditary hemorrhagic telangiectasia
• OSMED, see Otospondylomegaepiphyseal dysplasia
• osseous Paget's disease, see Paget disease of bone
• osseous-oculo-dental dysplasia, see Oculodentodigital dysplasia
• osteitis deformans, see Paget disease of bone
• osteitis fibrosa disseminata, see McCune-Albright syndrome
• Osteoarthritis
• osteoarthritis deformans, see Osteoarthritis
• osteoarthrosis, see Osteoarthritis
• osteochalasia desmalis familiaris, see Juvenile Paget disease
• osteochondritis dissecans, short stature, and early-onset osteoarthritis, see Familial osteochondritis dissecans
• osteodermia, see Progressive osseous heteroplasia
• osteodysplastic primordial dwarfism type II, see Microcephalic osteodysplastic primordial dwarfism type II
• osteodysplasty of Melnick and Needles, see Melnick-Needles syndrome
• osteoectasia with hyperphosphatasia, see Juvenile Paget disease
• Osteogenesis imperfecta
• osteogenesis imperfecta with unusual skeletal lesions, see Gnathodiaphyseal dysplasia
• osteogenesis imperfecta, Levin type, see Gnathodiaphyseal dysplasia
• osteogenesis imperfecta, ocular form, see Osteoporosis-pseudoglioma syndrome
• osteoglophonic dwarfism, see Osteoglophonic dysplasia
• Osteoglophonic dysplasia
• osteoma cutis, see Progressive osseous heteroplasia
• osteopathia condensans disseminata, see Buschke-Ollendorff syndrome
• osteopetroses, see Osteopetrosis
• Osteopetrosis
• Osteoporosis-pseudoglioma syndrome
• osteosis cutis, see Progressive osseous heteroplasia
• Osterreicher syndrome, see Nail-patella syndrome
• oto-palato-digital syndrome, type I, see Otopalatodigital syndrome type 1
• oto-palato-digital syndrome, type II, see Otopalatodigital syndrome type 2
• oto-spondylo-megaepiphyseal dysplasia, see Otospondylomegaepiphyseal dysplasia
• otogenic vertigo, see Ménière disease
• otomandibular dysostosis, see Craniofacial microsomia
• Otopalatodigital syndrome type 1
• Otopalatodigital syndrome type 2
• Otospondylomegaepiphyseal dysplasia
• OTULIN-related autoinflammatory syndrome, see Otulipenia
• Otulipenia
• Ovarian cancer
• ovarian carcinoma, see Ovarian cancer
• ovarian dysgenesis with sensorineural deafness, see Perrault syndrome
• Owren disease, see Factor V deficiency
• Owren's disease, see Factor V deficiency
• oxalosis, see Primary hyperoxaluria
• oxaluria, primary, see Primary hyperoxaluria
• Published: December 4, 2018
• The resources on this site should not be used as a substitute for professional medical care or advice. Users with questions about a personal health condition should consult with a qualified healthcare professional.