Is cutaneous lupus erythematosus contagious?
May 22, 2022
Source: Cainiu Health
Dr. Wang Xiaoyan
Introduction
Systemic lupus erythematosus (SLE) is an autoimmune disorder caused by dysregulation of the immune system—not an infectious agent—and therefore is not contagious. In contrast, infectious diseases are caused by pathogens such as bacteria or viruses and can be transmitted from person to person. SLE affects only the patient’s own body systems, including the skin, serous membranes, joints, kidneys, and central nervous system.
Lupus erythematosus encompasses several subtypes, including discoid lupus erythematosus (DLE), subacute cutaneous lupus erythematosus (SCLE), systemic lupus erythematosus (SLE), deep (or tumid) lupus erythematosus, neonatal lupus erythematosus, and drug-induced lupus erythematosus. So, is lupus erythematosus contagious? The details are as follows:
Lupus erythematosus results from dysregulation of the body’s immune system and is not caused by any pathogen; therefore, it is not contagious. By definition, infectious diseases are those caused by pathogens—such as bacteria or viruses—and capable of spreading from person to person.
Lupus erythematosus affects only the patient’s own systems—including the skin, serous membranes, joints, kidneys, and central nervous system. If someone around you—or you yourself—has lupus, there is no need for excessive anxiety; avoid imposing undue psychological stress on yourself.
Common early symptoms of lupus erythematosus include fever, fatigue, weight loss, and joint or muscle pain. In the initial stages, many patients may misinterpret these symptoms, making early diagnosis challenging; lupus is often misdiagnosed as other conditions. Some patients develop rashes—including discoid lesions or malar (butterfly-shaped) facial rashes. Timely medical consultation and treatment can effectively minimize damage to other organs or systems.
