Mendelian the search engine for phenotype-genotype relationships

Fixing Diagnosis of Rare Diseases






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Our online technology is tailored to the needs of physicians, healthcare providers, and patients looking for the best tools to get the right diagnosis with speed and accuracy.


We are continuously adding, curating and analysing conditions, syndromes, genes along with clinical tests in order to build the most comprehensive Rare Disease Knowledge Base.

Mendelian technology covers all aspects of Healthcare



Our Solutions for Rare Diseases Diagnosis

MendelApp is a tool for Health Professionals looking to find answers for their most difficult clinical cases. Using state-of-the-art data science techniques and up-to-date curated sources. MendelApp helps doctors discover the unsuspected links between their patients’ clinical description and the most likely causative genes and diseases.


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MendelTest is a fast, friendly and accurate way to help you find answers. We offer diagnosis services with at-home clinical tests and consultations with expert clinicians to put an end to the diagnostic odyssey faster.


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MendelScreen is a tool scanning large sets of medical records to recognise patterns of early, hidden or subclinical signs of rare diseases. By extracting phenotypic information, MendelScreen flags patients which warrant further investigation saving healthcare costs and redirecting patients to better care.


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Mendelian around the world

With over 40,000 unique users from 133 countries since launch, we are proud to partner with world renowned institutions using Mendelian tools everyday.


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Latest news from the Mendelian Blog


Tips for undiagnosed rare disease patients
Mendelian Blog

Tips for undiagnosed rare disease patients

Whether you or your child are suffering from a rare or undiagnosed condition, there are always options to explore. We’ve come up with a few to tips to help ease your worry and get you closer to the truth about your health.


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Browse our Genes and Rare Diseases Knowledge Base

(last updated 2 weeks ago)

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Fixing Diagnosis for Rare Diseases


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