Hand swelling in pregnant women is generally a normal physiological phenomenon and usually occurs in the middle and late stages of pregnancy. The common causes of hand swelling during pregnancy are divided into physiological factors and disease factors. 1, physiological factors 1, endocrine function changes, such as the placenta secretion of hormones and adrenal secretion of aldosterone increased, resulting in water and sodium retention in the body, water accumulation in the body is the cause of swollen hands; 2, due to the increase of the uterus in the middle and late stages of pregnancy, compression of the pelvic veins so that the return flow of blood in the veins is blocked, resulting in blood dilution during pregnancy, blood volume increased, but the increase in red blood cells is not as large as the increase in plasma However, the increase in red blood cells is not as large as the increase in plasma, and the blood becomes relatively dilute, and the plasma protein does not increase, which leads to a decrease in plasma colloid osmotic pressure and the migration of water to the tissue interstices, resulting in edema and hand swelling. Second, disease factors during pregnancy, if combined with gestational hypertension, can also lead to swollen hands and rapid weight gain, accompanied by hypertension, proteinuria and other symptoms. If a pregnant mother has swollen hands, she should pay attention to rest, sleep in the left side position, and eat a low-salt diet, and most physiological edema will slowly improve after rest and adjustment. If the hand swelling does not improve after the above treatment, you should go to the hospital in time to cooperate with active treatment.