Rare Disorders

These conditions may be infrequent, but that doesn't make them any less scary or puzzling. Causes can range from genetic abnormalities to certain diseases and infections.

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More Rare Disorders

Colin Farrell's Son Has Angelman Syndrome—Here's What That Is
The actor just requested conservatorship over his teenage son, James, who is unable to take care of himself.
MRKH Syndrome Left This Woman Without a Functioning Vagina—Here's What to Know
"We have a responsibility to normalize differences," Ally Hensley shared on Instagram before opening up about living with this rare condition.

This Model Lost Her Foot and Fingers to a Rare Condition, and It Taught Her to Love Her Body Even More

Lyric Heard doesn't want to be treated differently from other models because of her disability.