In this study, the mean TGF-β1 level of endometriosis patients was 656.6 ± 164.92 ng/ml with a range of 97 to 982 ng/ml while nonendometriosis patients had a mean TGF-β1 of 163.5 ± 166.36 ng/ml with a range of 32 to 553 ng/ml. Here, TGFB1 is linked to endometriosis.