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.
Besides the above causes, the tendons and ligaments surrounding the joint can at times all be potential causes of thumb joint pain. Injury or trauma to the thumb such as a fracture or sprain can all lead to pain and limited function. A sprain of the ligaments surrounding the joint is referred to as a 'jammed' thumb. In extreme circumstances, the disruption to these ligaments can ultimately lead to the instability of the joint. Another potential cause of the thumb joint pain is the overuse of the thumb.