经肾穿刺明确诊断的50岁以上肾脏病者57例,与同期50岁以下的593例肾活检病例比较,前者膜性肾炎明显多见(P<0.05),其特征为肾小球硬化率较后者为高,间质纤维化和血管病变较严重,高血压多见,肾功能相对较差(p<0.05)。50岁以上组有3例伴癌肿、2例伴下腔和肾静脉血栓形成。间质性肾炎和糖尿病性肾病的发生率也明显较高。 Compared with 593 cases of renal biopsy under the age of 50, 57 cases of renal diseases over 50 years old diagnosed by renal biopsy showed that membranous nephritis was more common (P <0.05), which was characterized by more glomerular sclerosis The latter is high, interstitial fibrosis and vascular disease is more serious, more common high blood pressure, renal function is relatively poor (p <0.05). There were 3 cases with cancer in the group over 50 years old and 2 cases with inferior vena cava and renal vein thrombosis. The incidence of interstitial nephritis and diabetic nephropathy is also significantly higher.