Sleeping up with swollen hands is considered to be caused by sleeping in a position, or other diseases that slow down the flow of blood reaching the hands, which can cause swelling of the hands. In the process of sleeping, if you choose to lie on your side or other sleeping positions, it will cause the blood flow in the arm to slow down, and the blood that reaches the arm cannot return in time, and for too long, the arm will become numb and swollen. If the patient suffers from kidney disease, the metabolic function of the body slows down during sleep, and the water in the body cannot be processed by the kidneys, which can lead to excessive water accumulation in the body, and the patient will have the symptoms of edema. Therefore, when hand swelling occurs after sleeping, patients can exercise their hands to speed up blood circulation in the hands, which can provide relief. If it cannot be relieved, they need to seek medical examination in time to investigate whether it is kidney or vascular disease. Patients should usually pay attention to the combination of work and rest, and try not to drink water before going to bed to prevent edema from occurring.