書しょ痙けい

noun

writer's cramp; graphospasm

Medical term for a focal dystonia causing painful muscle spasms in the hand and forearm during writing. Also known as mogigraphia.

• 長ちょう時じ間かんの筆ひっ記きで手てが痛いたむ場ば合あい、書しょ痙けいの可か能のう性せいがあります。

  If your hand hurts after writing for a long time, it could be writer's cramp.