Certified Hand Therapist (CHT) Practice Exam

What describes Bowler's thumb/finger?

1. Rupture of the flexor tendon

2. Frostbite of the digit

3. Fibrous enlargement of a nerve due to repetitive trauma

4. Hyperemia and itching of the finger

The correct answer is: Fibrous enlargement of a nerve due to repetitive trauma

Bowler's thumb, or Bowler's finger, is characterized by a condition that results from repetitive trauma to the ulnar or median nerve at the base of the thumb. This repetitive trauma can lead to a fibrous enlargement of the nerve, often due to the pressure and friction it experiences during activities such as bowling, hence the name. The condition primarily affects bowlers but can also arise in other sports or activities that involve grip-related stress on the fingers. The other choices do not accurately represent Bowler's thumb. A rupture of the flexor tendon involves the tearing of the tendon that allows finger flexion, which is a different injury. Frostbite of the digit refers to tissue damage caused by extreme cold, typically resulting in a different set of symptoms and requiring distinct management. Hyperemia and itching of the finger are not symptoms associated with Bowler's thumb, as they point towards vascular or allergic reactions, rather than the mechanical stress that characterizes this condition. Understanding this context helps clarify the distinct nature of Bowler's thumb as a neuropathic condition resulting from mechanical irritation.