1. Physical quality decrease
For example, the elder have high incidence of atherosclerosis, the risk of renal artery stenosis in elderly patients with coronary heart disease is 16%~42%, ischemic kidney disease is the main factor of elderly kidney failure. The occurrence rate of prostatic hyperplasia, urinary calculus and bladder disease is higher in elder population, so the risk of acute postrenal failure in elder population is higher than ordinary group.
2. Susceptible factors increase
The glomerular filtration function and renal tubular function of old people will be reduced, the poor compensatory ability of water and salt can increase risks of malnutrition, emesis, diarrhea, alimentary tract hemorrhage, infection, cardiac insufficiency and shock. Because the reduced metabolism due to lowering glomerular filtration rate, the chance of long-term medication for the elder will become high, improper drug use can lead to kidney damage easily.
3. Weak glomerulus function
With the growth of ages, physiological glomerular sclerosis, renal tubular atrophy and renal interstitial volume expansion aggravating gradually. The kidney function will decrease little by little, leading to renal failure easily.
Experts suggest that once old People found the renal abnormalities, they must go to do a physical examination as soon as possible, so as not to delay the disease.
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