Your bicep is the muscle in the front of your upper arm. It helps you bend your elbow and twist your forearm. Three tendons attach your bicep to bone: The long head tendon attaches your bicep to the ...

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 ...

A bicep bulge is an injury that typically results from a tendon tear and is sometimes referred to as a “Popeye deformity.” When one of the tendons attached to the bicep muscle is torn, it causes the ...

Injury to the biceps muscle and tendon can lead to bicep pain. A person’s bicep may hurt due to overuse, trauma, and other injuries. The biceps muscle stretches on the upper arm, between the shoulder ...