怀孕。怀孕期间，体内的血容量会增加。这一变化有利于胎儿的生长，但也可能导致腿部静脉扩张。 Should you have bleeding throughout bowel movements or you've got hemorrhoids that do not increase following a week of property care, speak with your health care service provider. Steer clear of long durations of sitting down. Sitting down too prolonged, especially to the toilet, can boost the for... https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-everything-you-need-to-know/