Without the two tendons to connect the large, back, lower leg muscle to the outside ankle, there’d be no control of the foot or ability move it out and away. Learn about injury, symptoms and treatments.

Causes & Triggers

  • Overpronation (inward rolling) of foot
  • Overuse or repetitive overloading
  • Tight calf muscles

Signs & Symptoms

  • Irritation or inflammation
  • Morning pain
  • Pain or discomfort outside ankle, behind the bony protrusion
  • Pain with new or increasing activity

Tips & Treatments

  • Most patients cannot recall injuring themselves; the area is simply painful.
  • Irritation can range from mild to moderate to severe, depending on whether tendon is torn, split or dislocated.
  • Diagnostic testing is required for proper diagnosis and may include MRI.