We searched electronic databases (PubMed, Scopus, and Web of Science) from inception to 31 May 2024 (inclusion criteria: VEGF measurement in SLE patients and healthy controls and SLE patients with and without active disease or specific organ dysfunction in case–control studies, recruitment of adult participants, and availability of the full text in the English language; exclusion criteria: non-case–control studies, participants under 18 years, articles reporting duplicate or irrelevant data, and animal studies). This evidence concerns the gene VEGFA and systemic lupus erythematosus.