Carpal Tunnel SyndromeCarpal tunnel syndrome is pain, tingling, and other problems in your hand because of pressure on the median nerve in your wrist.

The median nerve and several tendons run from your forearm to your hand through a small space in your wrist called the carpal tunnel. The median nerve controls movement and feeling in your thumb and first three fingers (not your little finger).

De Quervains Tenosynovitisde Quervain's disease is a painful inflammation of tendons in the thumb (tenosynovitis). The swollen tendons and their coverings rub against the narrow tunnel through which they pass. The result is pain at the base of the thumb.

Lateral EpicondylitisA painful injury to the tendon that is attached to the outer part of the elbow due to repetitive twisting of the wrist or forearm which causes irritation and inflammation of the extensor tendon. This tendon attaches to the lateral epicondyle of the humerus. The condition is therefore also known as lateral epicondylitis.

Tennis is not the only culprit. Any action that involves repetitive twisting of the wrist or forearm such as using a screwdriver can lead to this injury.

Radial Nerve EntrapmentRadial nerve compression or injury may occur at any point along the anatomic course of the nerve and may have varied etiologies. The most frequent site of compression is in the proximal forearm in the area of the supinator muscle and involves the posterior interosseous branch.

However, problems can occur proximally in relation to fractures of the humerus at the junction of the middle and proximal thirds, as well as distally on the radial aspect of the wrist.

Rotator Cuff InjuryA rotator cuff injury includes any type of irritation or damage to your rotator cuff muscles or tendons. Causes of a rotator cuff injury may include falling, lifting and repetitive arm activities — especially those done overhead, such as throwing a baseball or placing items on overhead shelves.

Impingement SyndromesProgressive pathologic changes resulting from the impingement of the acromion, coracoacromial ligament, coracoid process, or acromioclavicular joint on the rotator cuff.

Sprained AnkleA common musculoskeletal injury in which the ligaments of the ankle partially or completely tear due to sudden stretching. This typically occurs when the ankle is suddenly "twisted" in a sports activity or by stepping off an uneven surface.

The pain is initially severe and can be associated with a "popping" sensation. Immediate swelling over the area of injury often occurs as the injured blood vessels leak fluid into the local tissue. Partial tears retain some ankle stability, whereas complete tears lose stability because the strapping ligaments no longer brace the ankle joint.

Hamstring StrainA hamstring strain is a partial tear of the small fibers of the muscles in the hamstring group. The hamstrings are the large group of muscles in the back of the thigh. They consist of three muscles that run from above the hip to below the knee joint.

Patella TendonitisPatellar tendinitis is an injury that affects the tendon connecting your kneecap (patella) to your shinbone. The patellar tendon plays a pivotal role in the way you use your legs. It helps your muscles extend your lower leg so that you can kick a ball, push the pedals on your bicycle and jump up in the air.

Patellofemoral Pain SyndromePatellofemoral pain syndrome is a condition in which pain is felt under the kneecap of the knee joint. This pain occurs during exercise or movement, particularly during weight bearing activities such as running. It is often increased by going down stairs or down hills.