Protein in Urine (Proteinuria)
Protein leaking into urine is an early, important signal from your kidneys. Caught early, the underlying cause can often be treated effectively.
Medically reviewed by the RIIMS nephrology team · Last updated: June 2026
Why does protein appear in urine?
Healthy kidney filters keep protein in the blood. When filters are inflamed or damaged — by diabetes, blood pressure, infections or kidney-specific diseases — protein escapes into urine. Foamy urine is a common first clue. Urine tests (ACR, 24-hour protein) and blood reports together reveal how significant it is and what is causing it.
Symptoms to watch for
- Foamy or frothy urine
- Swelling around eyes, especially mornings
- Swelling in feet or ankles
- Weight gain from fluid
- Often detected only on routine urine tests
- High blood pressure
When to consult a kidney doctor
Persistent foamy urine, morning facial puffiness, or protein flagged on any routine test deserves timely evaluation — particularly if you have diabetes or hypertension.
Medical disclaimer: Information on this site is for awareness only and does not replace medical consultation. Treatment depends on doctor evaluation and patient reports. RIIMS does not promise guaranteed cure or recovery.