At 7 days post‐ICH, a consistent pattern emerged: compared to the ICH group, the ICH + MFP group exhibited a reduced hematoma volume (p < 0.0001), whereas both the Aqp4−/− (p = 0.0032) and TGN‐020 (p = 0.0002) groups demonstrated an increase in hematoma volume (Figures 4d and S1b). The gene discussed is AQP4; the disease is hematoma.