Consequently, in our study, the distribution analysis of the genotype polymorphism of rs5918 in the ITGB3 gene between the thrombosis and bleeding complications showed that the TC genotype was significantly higher in HF patients with thrombosis complications than in patients without thrombosis (84.6 vs. 36.4%, p = 0.043) (Supplementary Table S9). The gene discussed is ITGB3; the disease is hydrops fetalis.