Additionally, this study provided a comprehensive characterization of the proteomic profile of DMV EVs and found that the collagen hydroxyproline is upregulated, while complement C3 is downregulated in the r‐DMV group, suggesting that r‐DMV may not be a simple pathological phenomenon and highlighting the potential involvement of EVs in the progression of brain atrophy in r‐DMVs which has implications for the development of future therapeutic strategies. Here, C3 is linked to Brain atrophy.