Research has suggestedthat functional gene polymorphisms of MMP9 -1562 C/T might be associated with anincreased risk of Idiopathic recurrent spontaneous abortion in women (Pereza et al., 2012).Moreover, a rise in MMP-9 concentrations has been linked to spontaneous abortion(Castruita-De la Rosa et al.,2020). Here, MMP9 is linked to abortion.