Why does chronic nephritis cause foot edema?
Disease description:
Every morning upon waking, I notice swelling in my feet. After a hospital examination, I was diagnosed with chronic nephritis. Why does chronic nephritis cause foot swelling?
Doctor's answer (1)
Dr. Zhao Xinju
Chronic nephritis can lead to a decreased glomerular filtration rate and increased blood volume, causing water and sodium retention, which results in foot edema. If chronic nephritis patients also have hypoalbuminemia, it may cause edema in dependent body areas. In addition, impaired water and sodium excretion in patients with chronic nephritis can lead to water and sodium retention after consuming large amounts of high-salt foods, resulting in foot edema.
