The Rare Disease Database

The most comprehensive source of rare disease information.

Spotlight On

Amyotrophic lateral sclerosis (ALS)

Learn About This Rare Disorder

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When are the symptoms of Stargardt disease most commonly seen?

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5 Facts you should know about

Neuromyelitis optica spectrum disorders (NMOSD)

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Tuberous sclerosis complex

60% of tuberous sclerosis cases are diagnosed in the first year. Diagnosis slows down considerably after the first year.

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Top 10 rare neurological diseases

Measured by: prevalence

DiseaseEst US prevalenceInheritanceAge of onset
Narcolepsy146,000 – 200,000
Idiopathic hypersomnia104,280 – 130,000
Charcot-Marie-Tooth disease82,250 – 125,000
Myasthenia-Gravis48,000 – 60,000
Young onset parkinson’s disease40,000 – 50,000
Lennox-Gastaut syndrome30,000 – 45,000
Tuberous sclerosis27,000 – 37,500
Huntington disease21,450 – 30,000
Progressive supranuclear palsy21,000 – 45,870
Amyotrophic lateral sclerosis15,000 – 17,500