Wrist and finger pain can be caused by a variety of factors, including injury, overuse, and certain medical conditions. Some common causes of wrist and finger pain include:

1. Carpal tunnel syndrome: This is a condition that occurs when the median nerve, which runs from the forearm to the hand, becomes compressed at the wrist. Symptoms include numbness, tingling, and pain in the wrist and fingers.

2. Tendinitis: This is a condition that occurs when the tendons in the wrist and fingers become inflamed due to overuse. Symptoms include pain and swelling in the affected area.

3. Arthritis: This is a condition that causes inflammation in the joints, including the wrist and fingers. Symptoms include pain, stiffness, and swelling in the affected joints.

4. Fractures: A fracture is a break in a bone, and can occur in the wrist or fingers as a result of trauma or injury. Symptoms include pain, swelling, and difficulty moving the affected limb.

5. De Quervain's syndrome: This is a medical condition that affects the tendons in the wrist and hand. It is caused by inflammation of the tendons and the sheath (a protective covering) that surrounds them. This condition can cause pain, swelling, and difficulty moving the wrist and hand.