Lupus is a complex disease which can be hard to diagnose. Symptoms of lupus can resemble other types of arthritis and rheumatic diseases.

How and why lupus develops is not understood. Lupus disease probably results from a complex mix of hormonal, genetic, and environmental factors.

We don’t know what causes lupus. There is no cure, but in most cases lupus can be managed. Lupus sometimes seems to run in families, which suggests the disease may be hereditary.

Information on lupus in our five-part comprehensive guide includes: what lupus is, types of lupus, information on lupus signs and symptoms, how lupus is diagnosed, and how it is treated.

Lupus nephritis (lupus kidney disease) is a kidney disorder that is a complication of systemic lupus erythematosus. Lupus nephritis is also known as lupus glomerulonephritis or lupus glomerular disease. How is lupus nephritis diagnosed? How is lupus

Scientists and researchers are working to find out what causes lupus and how it can best be treated.

Fast Facts About Lupus

Pulmonary arterial hypertension is a serious condition for which there are treatments but no cure. Secondary pulmonary arterial hypertension can be caused by or occurs because of another secondary condition. Which rheumatic diseases are associated wi

Lupus may be caused by a single genetic defect.

World Lupus Day