Tendons connect muscles to bone. The fingers have tendons that run all the way up to the finger tips. The tendons on the palm side let you curl your fingers. A flexor tendon injury is damage to these tendons. When the tendons are damaged, you can lose your ability to bend your finger(s).

Healthy Flexor Tendons of the Hand
flexor tendon
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Flexor tendon injures most commonly occur as a cut or laceration to the hand. Other causes include:

  • Damage to the tendon from:
    • A cut to fingers—palm side
    • A sports injury:
      • Stretching of tendon
      • Jersey finger—when finger catches on another player’s jersey or clothing
    • Rheumatoid arthritis