Detailed answer

Yes, dark spots on the skin can sometimes be a sign of certain autoimmune diseases. Conditions like systemic lupus erythematosus (SLE) and dermatomyositis can cause skin manifestations, such as malar rash (a butterfly-shaped rash on the face) in SLE and heliotrope rash (purplish skin rash around the eyelids) in dermatomyositis. These rashes often present as dark or discolored spots on the skin. It's important to note that dark spots alone are not conclusive evidence of autoimmune disease, and a proper medical evaluation is necessary to determine the underlying cause. If you are experiencing dark spots or other skin changes, it is recommended to consult a healthcare professional for an accurate diagnosis and appropriate treatment.