I was recently released from a heroin detox facility. Upon urinalysis, I was told that I appeared to have some sort of urinary tract infection. I was completely asymptomatic at the time, but am experiencing pain, urgency without producing much urine, and as of today I ve noticed a mixture of blood and urine when I am able to empty my bladder. I wonder if this has anything to do with coming off of heroin and the subsequent Methadone taper I received while in the hospital, or has my heroin use done some potential damage to my kidneys?