What Lupus Looks Like for Most People

7. Watch for Signs of Kidney Trouble

Lupus can trigger inflammation in the kidneys, a condition known as lupus nephritis. This affects how well your body filters waste, which can lead to serious complications if left untreated. The signs aren’t always obvious—some people notice swelling in their legs or feet, while others see changes in their urine, like foaming, dark color, or even blood.

High blood pressure and frequent nighttime urination can also be red flags. Since these symptoms often develop gradually, it’s easy to overlook them at first. But untreated kidney issues can escalate quickly, so it’s worth bringing up any changes to your doctor, especially if they show up alongside other lupus symptoms.