Swelling of one hand is considered to be caused by the lack of blood circulation, pay attention to the usual swelling of the hand is often maintained in a certain position for too long, so that the blood circulation is not good. At this time, you need to let the arm relax, move the arm, after resting the arm swelling will feel much better, do not need to worry. If the body metabolism caused by poor hand swelling, the need to regulate the body, accelerate the body metabolism, eat less heavy food, if necessary, can be adjusted through the drug, pay more attention to rest, maintain good habits, avoid staying up all night, appropriate limb exercise such as badminton, swimming, gymnastics, etc., not only can exercise, but also to relax the mood.