Explore 26,488+ diseases with patient-friendly information, gene associations, and connections to patient organizations.
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Making rare disease information accessible through trusted data, community knowledge, and global connections.
Patient-friendly information on 26,000+ diseases with gene associations, symptoms, and treatment options.
Browse diseasesInformation created by AI and refined by patients, caregivers, and experts who know these conditions best.
Learn how it worksConnect with advocacy groups that provide support, resources, and community for patients and families.
Find organizationsDiseases with known gene associations
Our disease data comes from the Monarch Disease Ontology (MONDO), the most comprehensive rare disease classification system. Gene associations are sourced from the Monarch Initiative Knowledge Graph, providing high-quality, causal gene-disease relationships.