Diabetic patients may show signs of kidney failure. 

1、The most typical manifestation is proteinuria, where the urine contains a large amount of protein. 

2、Skin lesions can also occur, characterized by dryness, peeling, and yellowish patches.

3、 Kidney dysfunction can lead to edema, starting with swelling of the eyes and progressing to full-body edema.

 4、Decreased urine volume is another sign, as the kidneys play a crucial role in urine excretion. 

5、Lastly, high blood pressure can indicate advanced kidney failure, as fluid retention increases blood volume.