What brought you here
Protein or blood in your urine
Sometimes you notice it yourself — urine that foams and won't settle, or a color that isn't right. More often a routine test finds it and nobody explains what it means. Either way, it's worth understanding.
Why protein in urine matters
Your kidneys are filters. Working properly, they hold protein back in your bloodstream where it belongs and let waste through. When the filters are damaged, protein starts slipping into the urine — and that's what makes urine foam the way soapy water does.
This matters because protein in the urine is one of the earliest signals kidneys give. It usually shows up well before creatinine rises or you feel any different, which means finding it early is genuinely good news: it's the point where there is the most to be done.
Blood in urine is a different question
Blood can come from anywhere along the path urine travels — the kidney filters themselves, a kidney stone, an infection, the bladder, or the prostate. Some causes are minor and some need attention promptly, and they aren't distinguishable by looking.
A single positive dipstick isn't a diagnosis either. Vigorous exercise, menstruation, and some foods and medications can all affect the result. The next step is usually to repeat and confirm the test, then measure exactly how much is there rather than just whether it's present.
Get seen promptly for these
- Visible blood in your urine — red, pink, or the color of cola — should be evaluated promptly, even once, even without pain.
- Fever with pain in your side or back.
- Passing very little urine, or none.
- Blood in your urine along with swelling or a sharp rise in blood pressure.
What happens next
What gets checked
- We confirm the finding and measure it — a urine albumin-to-creatinine ratio tells us how much protein is leaking, not just that some is.
- Blood tests show how well your kidneys are filtering overall.
- We look at your blood pressure and blood sugar, since both are common drivers.
- Imaging or a urology referral, if the pattern points at a stone, the bladder, or the prostate rather than the filters.
- If the filters are the source, we explain which treatments protect them and start the ones that fit you.
Questions people ask us about this
Is foamy urine always a problem?
No. A forceful stream makes bubbles in anyone, and those clear in a few seconds. Foam that lingers on the surface of the water, day after day, is the pattern worth testing. A urine test settles it quickly.
My doctor found protein but I feel completely fine. Should I still come in?
Yes — and feeling fine is normal at this stage, not a sign it's nothing. Kidneys rarely cause symptoms until a great deal of function is gone, which is why the lab finding arrives first. Coming in while you feel well is the whole advantage.
Can protein in the urine be brought back down?
In many cases it can be reduced, and that's a real goal of treatment rather than just a number on a page. How much and by what means depends on the cause, so it starts with finding out why the protein is there.
Not sure whether you need a kidney specialist?
Call and ask. Our staff will tell you whether this is something we should see, what your plan requires, and what to bring. A real person answers, and the whole staff speaks Spanish.