A knuckle is a finger joint. Like other joints, it can experience injury or be affected by a health problem. Each of your ...

Joint health is vital for preserving the flexibility and functionality of your fingers, particularly as you grow older.

Medically reviewed by Jennifer Steinhoff, MD Finger sprains and dislocations are common hand injuries. A sprain happens when ...

Knuckle cracking, a common habit, involves the formation of an air bubble in the synovial fluid of finger joints. While the exact cause of the cracking sound remains unclear, studies have not ...