The blood vessels on the back of the hand and the back of the foot are located at the extremities. When drooping, blood backflow can cause obvious prominence, and it will disappear when it contracts when it is cold. This should be a normal phenomenon. For the symptoms caused by winding paths leading to secluded places, it is suggested to soak in white vinegar water at ordinary times and take drugs orally to soften blood vessels. When you feel tired, you must not force yourself to continue working, but pay more attention to rest, combine work and rest, avoid physical fatigue and mental tension, and keep a calm mind. Don't hang your hands all the time when you are free, but lift them up to avoid blood being squeezed into venous vessels due to insufficient power when it returns to the heart.