Making Diagnosis, Research & Treatments Possible for All

A world where no family with an undiagnosed or ultra-rare condition has to fight alone for a diagnosis, research, treatment or support.

The Latest News from the UDNF

  • We’re excited to welcome Danielle Carnival, Ph.D., as our new CEO of the UDNF! She brings not only deep expertise in science and policy, but a heartfelt commitment to listening, learning, and working with the rare and undiagnosed communities....

  • UDNF Statement on Rare Disease Day 2025 Cancellation, Research Funding, and Policy Impacts on the Ultra-Rare and Undiagnosed Community...

  • Read the December E-News Highlights Advancing Hope: A Year of Research Progress in Undiagnosed and Ultra-rare Diseases Until Rare is Not a Barrier: How Your Donation Helps Help Make the Impossible Possible...

What the UDN offers patients like myself extends far beyond the obvious search for diagnosis and treatment. It offers a far more elusive gift; one that we struggle at times to find, and at other times to hang on to. One that we frequently abandon when caught in the throes of nihilistic despair.

It offers HOPE.

– Ingrid Kovitch, UDN Participant

Undiagnosed Patient and Family Stories

Danny Miller

Our first son Carson was born in 2011, and our diagnostic odyssey began just a few months later when we began to notice that his developmental milestones weren’t quite tracking with other kids his age. His movements seemed stiff and jerky, and he had trouble

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Mayra Ramos

As parents, all we want is for our kids to be happy and healthy. Unfortunately, that is not always how things turn out. My name is Mayra and I have three beautiful children. My oldest is 18, my middle child is 14, and my baby

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Sanam Kadhoda

Eli is a very energetic and playful kid! He loves Superheroes! His favorite characters are the PJ Masks, and he loves to run around the house imitating them. Eli is the most loving and pure child. He LOVES hugs and kisses and asks for them

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