Firstly, systemic lupus erythematosus is a chronic, multi-systemic, systemic autoimmune disease that commonly occurs in women of childbearing age, more frequently seen in females, with a significantly higher incidence rate in females than in males. The cause is currently unclear, only indicating that experts believe it is related to environmental pollution, viral infections, hormone levels, genetics, etc., but there is no definitive evidence proving which factors it is related to, only stating that there are studies linking it to these factors. Its clinical manifestations also vary, with most cases having a gradual onset, characterized by recurrent erythema, even pustules, Raynaud's phenomenon, etc. A minority of patients may have a sudden onset, primarily presenting with major hematologic damage.