This is tenosynovitis. Long-term use of wrist activities, do not know how to protect themselves, wrist fever has a history of touching cold water, leading to long-term tendon sheath inflammation. Man's wrist is a magical structure, so you should take good care of it. Remember that all joints should not be touched with cold water. Otherwise, it will cause inflammation. You should pay attention to the care of your wrist now, and never touch cold water again in the future, so keep warm. It is best to exercise less recently and apply hot compress for a while. Don't do the work that makes it difficult, it will be fine after a while. It is easy to relapse when you are tired or cold.