Organomegaly involves the enlargement of body organs. Many different factors may cause such enlargement. While some causes are benign, others are more serious. Heart enlargement, liver enlargement, and spleen enlargement â called cardiomegaly, hepatomegaly, and splenomegaly, respectively â represent three examples of abnormal organ enlargement.
Thumb pain can result from damage or injury to any of the structures in your thumb, including bones, joints, tendons, nerves, muscles, blood vessels, connective tissue, skin or fingernails. The symptoms may be constant or they may vary, and they may improve or worsen with movement.
The first of these, the median nerve, gives rise to carpal tunnel syndrome, where the pain and numbness is mostly on the thumb side of the hand. The second of these, the ulnar nerve, typically gives rise to pain and numbness which is more on the pinky side of the hand.