<B>The Cervical/Uterine Factor</B> Conditions within the cervix, which is the lower part of the uterus, may impact your fertility, but they are rarely the sole cause of infertility. It is important for your physician to know if you have had prior biopsies, surgery, “freezing” and/or laser treatment of the cervix, abnormal pap smears, or if your mother took DES (diethylstilbestrol) while she was pregnant.