De Quervain's syndrome, also known as "the sore thumb of the mother", manifests itself with superficial pain in the wrist at the base of the thumb. The cause of the ailments is irritation of the tendon sheaths surrounding the tendons of the thumb muscles. The formation of microdamages occurs as a result of disturbed sliding of the tendons during repeated grasping movements or manipulative movements involving the thumb. The popular term "mother's thumb" is associated with the frequent occurrence of the condition in mothers who grab and lift their babies multiple times a day. Currently, de Quervain's syndrome can also develop in people who write large amounts of text messages with their thumb.

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.