MKI67 and neoplasm: Finally, liver residual tumor observation, H&E staining, and Ki67 staining of the above 4 groups further confirmed that iMWA combined with cholesterol‐catalyzed hydrogel therapy could significantly inhibit the proliferation of HCC cells in situ by killing tumor tissue and had no obvious effects on the health status of the rats, such as body weight (Figure 6F,G; Figure S8, Supporting Information).