妊娠期由于肾血流量及肾小球滤过率增加,肾脏负担加重,并由于妊娠期的生理变化包括泌尿系的扩张,子宫增大后压迫输尿管,激素的变化,导致输尿管、肾盂扩张(主要在右侧)。某些肾脏疾病由于妊娠加重了病情,甚至进展到疾病的终末阶段。因此,妊娠前对已存在的肾脏疾患进行认真的评估 Due to increased renal blood flow and glomerular filtration rate during pregnancy, the kidney burden increased, and due to physiological changes during pregnancy, including the expansion of the urinary tract, uterine enlargement after oppression of the ureter, hormone changes, leading to ureteral, renal pelvis expansion (mainly on the right). Some kidney disease exacerbates the condition due to pregnancy and even progresses to the terminal stage of the disease. As a result, preexisting kidney disease has been carefully evaluated