Thanks for writing to us.
As you have history of ureteric calculi,there could be a possibility of recurrent calculi or urinary tract infection
Here are the few causes of macroscopic hematuria that should be ruled out:
The most common causes of hematuria are:
-Urinary tract infection
-Ureteric calculi with or without hydronephrosis
-Kidney stones or ureter stones
-Benign prostatic hyperplasia
, in older men, especially those over 50
Do you have fever?Do you have any other symptoms like abdominal pain
Do you have any other medical illness like renal calculi or diabetes,hypertension?What is your age ?
I would like to suggest USG KUB,urine examination for proteinuria,casts,WBCs,Morphology of RBCs.
This information could help to come to a conclusion.
Get a Nephrologist
opinion for clinical correlation.
Hope this could help you.
Wish you good health.