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The Rare Disease Search Engine is specialized search engine using Google's co-op program combined with a narrowed field of search to eliminate useless results that would normally complicate one's search for needed information.

To Search: simply begin typing in the name of the condition you wish to find. Results matching the partial name will be returned. The results will search through the name, abbreviation and alternate names of all conditions we have in our database. The results that are returned will be links to search results of a narrowed, filtered web search of only those sites that offer reliable, focused information on rare diseases. Hovering over the condition name will display a ist of alternate names on file.

Find diseases that begin with: ABCDEFGHIJKLMNOPQRSTUVWXYZ

Machado-Joseph Disease Macroglossia Macular Degeneration Madelung's Disease Maffucci Syndrome Mal de Debarquement Malaria Malignant Astrocytoma Malignant Hyperthermia Malignant Melanoma Mallory Weiss Syndrome Mantle Cell Lymphoma Maple Syrup Urine Disease Marcus Gunn Phenomenon Marden Walker Syndrome Marfan Syndrome Marinesco Sjogren Syndrome Maroteaux Lamy Syndrome Marshall Smith Syndrome Marshall Syndrome Mastocytosis Maxillofacial Dysostosis May Hegglin Anomaly McCune Albright Syndrome McKusick Type Metaphyseal Chondrodysplasia Measles Meckel Syndrome Medium Chain Acyl CoA Dehydrogenase DeficiencyMedullary Cystic Kidney DiseaseMedullary Sponge KidneyMedulloblastoma Megaloblastic Anemia Megalocornea Mental Retardation Syndrome Meige Syndrome MELAS Syndrome Meleda Disease Melkersson Rosenthal Syndrome Melnick Needles Syndrome Melorheostosis Membranoproliferative GlomerulonephritisMenetrier Disease Meniere Disease Meningioma Meningitis Meningococcal Meningitis Meningococcemia Menkes Disease MERRF Syndrome Mesothelioma Metachromatic Leukodystrophy Metatropic DysplasiaMethylmalonic Acidemia Microvillus Inclusion Disease Mikulicz Syndrome Miller Syndrome Mitral Valve Prolapse Syndrome Mixed Connective Tissue DiseaseMoebius Syndrome Monilethrix Monosomy 10p Chromosome 10 Monosomy 18p Chromosome 18 Monosomy 3p2 Chromosome 3 Monosomy 4q Chromosome 4 Monosomy 8p2 Chromosome 8 Monosomy Distal 4q Chromosome 4 Morquio Syndrome Motor Neuron Disease Mowat-Wilson Syndrome Moyamoya Syndrome Mucha Habermann Disease Mucolipidosis IV Mucopolysaccharidoses MucopolysaccharidosisMucous Membrane Pemphigoid Mulibrey Nanism SyndromeMullerian Aplasia Multiple Carboxylase Deficiency Multiple Epiphyseal Dysplasia Multiple Exostoses Multiple Myeloma Multiple Pterygium Syndrome Multiple Sclerosis Multiple Sulfatase DeficiencyMultiple System Atrophy Mulvihill Smith Syndrome Mumps MURCS Association Muscular DystrophyMyasthenia Gravis Mycosis Fungoides Myelodysplastic Syndromes Myhre Syndrome Myofibrillar MyopathyMyotonia Congenita MyotonicMyotonic Dystrophy Myotubular Myopathy