(HealthDay News) -- A painful thumb may be more than an inconvenience -- it may signal a fracture that needs a doctor's care. The American Academy of Orthopaedic surgeons says symptoms of a fractured thumb may include: Significant pain or tenderness. Coldness or numbness. Swelling of the thumb. Difficulty or inability to move the thumb. A thumb that appears misshapen. .Sign up for our weekly HealthDay newsletter