Arms-Hands-Wrists
Thumb / UCL Sprain

A UCL sprain, sometimes called "skier's thumb," is damage to the tissue connecting your thumb bone to your hand bone.

  • Swelling at the base of the thumb
  • Bruising at the base of the thumb
  • Stiffness
  • Pain around the base of your thumb
  • Difficulty bending your thumb
  • Difficulty grasping an object between your finger and thumb
  • Thumb getting forced backward or another direction
  • Falling on outstretched hand
  • Is the base of your thumb swollen and/or bruised?
  • Is it painful to move your thumb or grasp an object?

Educational only — not a medical diagnosis.

  1. 1Rest
  2. 2Ice your thumb for 15 minutes (put a cloth or towel between the ice and your skin)
  3. 3Take anti-inflammatory drugs/NSAIDs (please talk to a parent/guardian/doctor before taking any medication)
  4. 4Seek medical care if there is no improvement within a few days
  • Deformity
  • Lump
  • Severe instability
  • Numbess
  • Hearing a pop at the time of injury
  • Avoid painful activities
  • Wear a splint for a few days to reduce motion

For educational purposes only. Not a substitute for medical advice.

Tracks symptoms over time (not a diagnosis).