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.
Carpal Tunnel Syndrome. Carpal tunnel is an area in your wrist through which median nerve ( the nerve that gives feeling and movement to the palm side of your hand) enters the hand. Swelling and constant pressure to this area can cause pain, numbness, tingling and involuntary twitching of your fingers (thumb included).