: This condition presents as ridges in the thumbnail caused by chronic picking or rubbing of the cuticle. Physicians often recommend covering the area with tape as a primary therapy to halt the behavior and allow the nail to heal.
: For physical activity, specialized guards like the ThumbPro are used in sports like baseball to protect the thumb from impact during play.
: The National Park Service promotes the "Rule of Thumb" for viewing wildlife like elk; if you cannot completely cover the animal with your outstretched thumb, you are too close.
Mature or adult "thumb guards" are specialized covers used to manage body-focused repetitive behaviors (BFRBs).