Conditions Affecting the Hand & Upper Extremities
The adult body contains more than 200 bones, and 30 of those bones can be found in each of your hands, forearms and upper arms. There is an intricate system of bones, joints, muscles, ligaments and tissues in your upper extremities, working together to help keep you functioning.
Because there are so many working parts, there are also a number of health conditions that can affect the hand and upper extremities. These conditions include:
- Arthritis: a degenerative condition that can cause joint stiffness, pain and swelling
- Carpal tunnel syndrome: a disorder that occurs when the median nerve is squeezed at the wrist, causing numbness, weakness and pain in the hand and wrist
- Cubital tunnel syndrome: a disorder that occurs when the ulnar nerve in the elbow is compressed, causing numbness, pain and tingling in the wrist, arm or elbow
- Dupuytren’s disease: a condition that causes the tissue under the skin in the palm of the hand to get thicker and shorter, which can cause the fingers to bend toward the palm.
- Fractures: a partial or total break in a bone
- Sprains: a stretched or torn ligament
- Strains: a stretched or torn muscle or tendon
- Tendonitis: an inflammation of a tendon
- Trigger finger: a condition affecting the tendons that flex the fingers and thumb, which can cause a sensation of catching when a person bends or straightens the fingers