1. Edema often starts from the eyelids (some patients start from the lower limbs first), which seriously affects the whole body and even produces pleural effusion and ascites.
2. Hypertension is one of the manifestations of high creatinine.
3. Frequent micturition (frequent micturition), urgent micturition (unable to hold back urine) and dysuria (pain in the lower abdomen and urethra during micturition).
4. Low back pain is mostly dull pain, and surgical diseases can cause severe colic.
5. Hematuria means that the urine contains blood cells, or the test shows that occult blood is positive (plus sign).
6. Polyuria exceeding 2500 ml per day and night is called polyuria.
7. Oliguria or anuria is less than 400 ml every day and night, and less than 100 ml is anuria.
8. Foam in urine may be a sign of increased urine protein, and positive urine protein test is reliable evidence of increased urine protein.