I and a co-worker got it from a job. She also did mountain climbing and that might be why hers was worse. She woke up one morning and her fingers were locked. Mine didn't get quite that bad but it was the same thing and had a break from work then it never happened again. So I was lucky and no surgery but they said she probably would. It was worst in the mornings and sometimes were sticky in the mornings and were difficult to bend but worked themselves out each day. I could feel the bumps on the tendons in the finger that cause the problem.