Joint deformity can occur in various joints but are most common in the hands and feet. Causes of joint deformity include injury and degenerative conditions such as osteoarthritis. A joint is where two ...

When a tendon in your biceps muscle tears, the muscle can bunch up and form a large, painful ball on your upper arm. This bulge is called a Popeye deformity or Popeye sign. It’s named after the ...

Haglund’s deformity is a bony ridge or bump that appears on the back of the heel bone, where the Achilles tendon attaches to the heel. Changing footwear and stretching exercises may help, but some ...