Repetitive activities & gout
Some hobbies or jobs require you to make repetitive motions with your hands. These actions, such as playing certain musical instruments or typing, can strain your fingers. Over time, this increases your risk of developing a trigger finger. Musicians, farmers, and industrial workers have a higher chance of developing trigger finger.
Gout [7] is a health condition characterized by the buildup of uric acid in the joints of the body. It typically affects the joints of the big toe but any joint can be affected by gout. The buildup of uric acid or sodium urate crystals in the joints causes them to become inflamed. In the joints of the fingers, this buildup can cause trigger finger to occur.