I bet there is a hereitary component to this condition and while traditional thinning skin is a age related thing ... this particular condition isn't an older person problem but something in your genetic code - in my opinion.
Rapier is a thin, two-edged sword or speech that is clever. 1  An example of rapier is a sword.  An example of rapier is a comedian's comebacks.
raphe (plural raphae or raphes) (anatomy, botany) A ridge or seam on an organ, bodily tissue, or other structure, especially at the join between two halves or sections. 2003, Joseph H. Kirkbride, Jr., Charles R. Gunn, Anna L. Weitzman, Fruits and Seeds of Genera in the Subfamily Faboideae (Fabaceae), page 24,