Thanks for writing your query.
Hematuria or blood in urine is commonly seen in infection of the Urinary Tract
Other cause can be prostatitis
You should drink lots of pure water daily(at least 8-10 glassses of water daily).
Also get following infections done :-
1. Urine examination for Culture/Senstivity.
2. Complete Blood Count(CBC).
3. Kidney Function Test.
If the problem persists you should consult an urologist
I hope this is helpful to you.