Skinny | Mature Thumbs
: Thinner, less elastic skin—sometimes called "crepey skin"—makes the underlying bones and tendons more prominent, contributing to a slender appearance.
Maintaining the health of your thumbs as they "mature" involves a combination of exercise and joint protection: How to tape for Thumb PAIN and ARTHRITIS skinny mature thumbs
"Mature" thumbs are often subject to specific orthopedic conditions that can impact their function and appearance: especially the basal (CMC) joint
: Deterioration of cartilage in the thumb joints, especially the basal (CMC) joint, can cause pain, stiffness, and sometimes a change in the thumb's contour. Health and Mobility Considerations can cause pain