Some medical conditions are so baffling to doctors and researchers that their exact origins remain a mystery.
(ABC)More Photos
Uncontrollable hiccups. Music-induced seizures. Persistent sexual arousal syndrome.
They are conditions that one would be hard-pressed to find in medical literature.
Bring them up in front of a physician and in some cases you may get little more than a blank stare.
But they exist, often as an extreme form of a normal bodily function that most people experience every day.
And while the thought of uncontrollable hiccups or never feeling pain sensations are cocktail-party fodder for some, they can be a source of difficulty and shame for those who experience them firsthand.
People with these strange conditions can be so uncomfortable, physically, socially and emotionally, that their lives can grind to a halt as they struggle to find a cure.
The following pages feature some of the more unusual medical conditions that have received recent media attention.
Do you have more information about this topic? If so, please click here to contact the editors of ABC News.
