What is a swollen finger?

There are many reasons for a finger swelling. First, if you don't pay attention to your own protection in the near future, your fingers will be injured by door clips, etc., and the subcutaneous blood vessels will rupture, which will cause the symptoms. Secondly, if you often play with computers, use keyboards, mice, etc., it will lead to excessive strain of muscles, tendons and other tissues in this part, causing tenosynovitis, which will also occur.