The kidneys are responsible for various bodily functions, including filtering and eliminating waste products through urination. These vital organs are also susceptible to various health complications, including lupus nephritis, a type of autoimmune kidney disease that could deteriorate their condition over time. It is a disease in which the immune system attacks the body’s cells and organs. Kidney disease caused by lupus nephritis may worsen with time and lead to kidney failure. Signs of lupus nephritis The symptoms of lupus nephritis may differ from one individual to the other.  Individuals may experience swelling in the ankles, legs,  feet, and less often in the hands or face, which occurs when the body has too much fluid (edema). Some people with this type of kidney disease might suffer from high blood pressure. Other signs may include: – Blood in the urine – Foamy urine due to too much protein – High levels of creatine in the blood – Joint pain or swelling – Sudden fever without any underlying cause – Muscle pain  Other than these symptoms, some patients may also develop a red rash, usually across the nose, face, and cheeks. Treatment options An individual should note that a cure for lupus nephritis is yet to be determined.