Please use the index below to access the condition you require information on. It may take longer to find what you are looking for this way compared with our "search this site" facility in the navigator on the left but we try to point you in the most appropriate direction using this index and therefore the results should be better. For speed, this index has been split into separate alphabetical files:

Contact a Family also has information on many other specific conditions and rare disorders. If you cannot find the information you require in The Contact a Family Directory Online, you may wish to use our Contact a Family Helpline service.

BBS see Bardet-Biedl syndrome
BPD see Broncho Pulmonary Dysplasia
BRRS see Bannayan-Riley-Ruvalcaba syndrome
Bannayan-Riley-Ruvalcaba syndrome
Bannayan-Zonana syndrome see Bannayan-Riley-Ruvalcaba syndrome
Bardet-Biedl syndrome
Barth Syndrome
Bartters syndrome see Metabolic diseases
Basal Cell Naevus syndrome see Gorlin syndrome
Bassen-Kornzweig syndrome see Neuroacanthocytosis disorders
Batten disease
Becker MD see Becker Muscular Dystrophy
Becker Muscular Dystrophy
Beckwith-Wiedemann syndrome
Benign Intracranial Hypertension
Benign Joint Hypermobility syndrome see Hypermobility
Berardinelli Lipodystrophy syndrome see Metabolic diseases
Best disease see Macular disease
Beta Ketothiolase Deficiency see Metabolic diseases
Beta-Methylcrotonylglycinuria see Organic Acidaemias
Bilateral Frontal Polymicrogyria see Congenital Bilateral Perisylvian syndrome
Bilateral Parasagittal Parietooccipital Polymicrogyria see Congenital Bilateral Perisylvian syndrome
Bilateral Perisylvian Polymicrogyria see Congenital Bilateral Perisylvian syndrome
Biliary Atresia see Liver disease
Biliary Hypoplasia see Liver disease
Biotin Deficiency see Metabolic diseases
Bipolar Affective disorder see Bipolar disorder
Bipolar disorder
Birthmarks see Vascular Birthmarks
Blackfan Diamond syndrome see Diamond Blackfan syndrome
Bladder Exstrophy
Blepharospasm see Dystonia
Blindness see Visual Impairment
Bloch-Sulzberger syndrome see Incontinentia Pigmenti
Bloom syndrome
Bonnevie-Ullrich syndrome see Turner syndrome
Brachial Plexus Paralysis see Erb's Palsy
Brachio-Oto-Renal syndrome see Deafness
Brachmann de Lange syndrome see Cornelia De Lange syndrome
Breughel syndrome see Dystonia
Brain Injuries
Brain Tumours
Brainstem encephalitis see Encephalitis
Brissaud II see Tourette syndrome
Brittle Asthma see Asthma
Brittle Bone diseases (Osteogenesis Imperfecta)
Broad Thumb-Great Toe syndrome see Rubinstein Taybi syndrome
Bronchiectasis see Lung diseases
Broncho Pulmonary Dysplasia
Brown-Séquard syndrome see Spinal Injuries
Bruton's disease see Primary Immunodeficiencies
Budd Chiari syndrome see Liver disease
Bulbar Poliomyelitis see Poliomyelitis
Bulimia nervosa see Eating Disorders
Bullous Ichthyosiform Erythroderma see Ichthyosis
Bull's Eye Dystrophy see Macular disease
Buphthalmia see Glaucoma
Butterfly-shaped Dystrophy see Retinitis Pigmentosa