For years tested positive for micro-hematuria. prior mds thought no issue. new primary wants renal us and urol. consult. is this necessary?

Yes, you need eval: Yes, you need some evaluation including ct scan and consultation to urologist for cystocopy etc and also nephrologist especially if the rest of urinalsysis is also not normal. D/w your primary in detail.

Maybe not: Microscopic hematuria is not uncommon, and may be benign, hereditary, acquired, or associated with other local or systemic conditions. Ultrasound is not usually revealing as a first evaluation. If not a tobacco user, & no history of kidney stones, i'd recommend screening by a nephrologist for blood and urine tests, then urologic evaluation if negative. Us, cystoscopy, and even biopsy may be needed.

Yes: There are many causes of microhematuria. If it has not been explained,you should have a renal sonogram to begin with and a urology consult. Good luck.