Familial cold autoinflammatory syndrome (FCAS) is an extremely rare disorder.
It’s characterized by episodes of
- joint pain,
- and other symptoms of inflammation.
All of these symptoms are triggered by exposure to the cold.
Just how rare is FCAS?
There are less than 300 diagnosed cases in the United States. It’s thought to occur in one in 1,000,000 births!
- blurry vision,
- excessive sweating,
- and nausea.
The symptoms usually start after extreme cold exposure. They begin within a two-hour period and can last up to 24-hours.