Swelling of hands and feet is a relatively common clinical symptom, the specific causes include the following aspects: one reason is due to the phenomenon of physiological swelling of the hands and feet, mainly due to the gradual increase in age, blood vessel elasticity is not good, or due to the long-term in the standing, hands and feet sagging work, resulting in poor blood reflux, blood stagnation in the periphery, which will cause physiological swelling of the hands and feet, the condition through appropriate activities or rest will be able to gradually ease the condition back to normal. Through appropriate activities or rest, the condition can be gradually relieved and return to normal. Another pathological cause is mainly due to low protein edema, which is commonly caused by cirrhosis of the liver and poor nutritional function and lack of nutrients, which will lead to low protein in the body and easily form low protein edema. Some bad heart function, such as mild heart failure, will cause poor circulatory function, blood stagnation in the lungs, hands and feet, limbs, are some of the causes of swelling of hands and feet.