What does discoid Lupus erythematosus look like?

skin lesion is circular and raised. The reddish rash is about 5-10 mm in diameter, with the center often somewhat scaly and lighter in color than the darker outer ring. The surface of these lesions...

Type "Google Images" in your search box. Then type "lupus rash" in the new search box and you will see plenty of pictures.

No, but some people with discoid or cutaneous go on to develop systemic lupus erythematosus which, if left untreated, can be life threatening in the minority of patients.

DLE cannot be prevented. Recommendations to prevent flares of DLE in patients with the disease include avoiding exposure to sun and consistently using sunscreen

The cause of DLE is unknown. It is thought that DLE (like SLE) may be an autoimmune disorder. Autoimmune disorders are those that occur when cells of the immune system are misdirected against the body