Achenbach syndrome is a rare, benign condition that involves swollen and bruised-looking (or “blue”) fingers and toes. It is not connected to other health conditions but may mimic their symptoms.

The woman had the classic signs and symptoms of Raynaud phenomenon. In the absence of a related systemic disease, this condition is termed Raynaud disease, or primary Raynaud phenomenon. In 1862, ...

A “blue wave” is bringing a flood of colorful, stinging creatures to Texas beaches, but experts warn beachgoers to watch out for one critter in particular: the “blue dragon.” “Thousands of by-the-wind ...