The term "tennis elbow" is used to describe a condition that manifests as pain in the area of the lateral epicondyle of the humerus, which increases when the fingers and wrist are straightened. Pain is often accompanied by impaired strength and decreased function of the upper limb. Patients suffering from tennis elbow also complain of symptoms of weakness in the wrist. In the past, the term "tennis elbow" was called lateral epicondylitis. The current state of knowledge allows to state that the symptoms of tennis elbow are not the result of inflammation but the pathology of the extensor muscles of the wrist.

