Your kidneys are quiet workers. They filter your blood every minute of every day, balance your fluids and minerals, manage your blood pressure, and even help your body make red blood cells. With sickle cell disease (SCD), they work harder than the average kidney — and over time, that wear and tear shows up.
Here's how to stay ahead of it.
Step 1 — The once-a-year urine test. The single most important kidney habit for SCD patients is an annual urine albumin test. Albumin is a protein that shouldn't be in your urine in any meaningful amount. When it shows up, it's often the earliest sign of kidney trouble — earlier than any symptom you'd feel. Catching it gives your provider time to start medications that protect your kidneys before damage compounds.
If you can't remember the last time you had your urine checked, that's the call you make this week.
Step 2 — Know the symptoms of worsening anemia. Anemia is part of SCD by definition. But when your kidneys start to slow down, anemia can get worse — sometimes silently. Tell your provider if you experience:
- Worsening fatigue
- General weakness
- Pale skin
- Cold hands and feet
- New dizziness
- Shortness of breath that's worse than your baseline
Your provider can prescribe medications that boost red cell production when kidney-related anemia is the driver.
Step 3 — Understand the long arc. Chronic Kidney Disease (CKD) means the kidneys are progressively losing function. CKD has stages — early stages are silent, later stages are not. End-stage kidney disease (ESKD) is when the kidneys can no longer keep you alive without dialysis or a transplant.
Patients with SCD who reach later kidney stages are often candidates for kidney transplant, and the data show people with SCD do well with transplant. It's a real option, not a last resort. Have the conversation early — well before you need it.
Daily habits that protect your kidneys:
- Hydrate consistently (8–10 cups of water a day, more in heat or activity)
- Take SCD medications as prescribed (especially hydroxyurea — it has kidney-protective effects)
- Manage blood pressure
- Limit NSAIDs (Advil, Motrin) without provider approval — they're hard on kidneys
- Don't smoke
- Treat infections promptly — UTIs hit harder in SCD
Your kidneys can't tell you when something's wrong. The lab can. Don't skip the urine test.
— Dr. Rob
📄 Resource: CDC Steps to Better Kidney Health for People with Sickle Cell Disease.