Trigger finger more commonly affects your thumb or your middle or ring finger. More than one finger may be affected at a time, and both hands might be involved. Triggering is usually more pronounced in the morning, while firmly grasping an object or when straightening your finger.
Medical Definition of regeneration. 1  1: an act or the process of regenerating : the state of being regenerated. 2  2: the renewal, regrowth, or restoration of a body or a bodily part, tissue, or substance after injury or as a normal bodily process continual regeneration of epithelial cells regeneration of the uterine liningâcompare regulation 2a.
A: Regurgitation is the backward flow of blood into your heart. This occurs when your heart's mitral valve doesn't close tightly. When the mitral valve doesn't work properly, blood can't move through your heart or to the rest of your body as efficiently as it should, making you feel tired or out of breath.