Gynaecology & Obstetrics All of the following mechanisms might account for a reduced risk of upper genital tract infection in users of progestin – releasing IUDs, except: A Reduced retrograde menstruation B Decreased ovulation C Thickened cervical mucus D Decrease incidence of surgical aboion 💡 Explanation All of the following mechanisms might account for a reduced risk of upper genital tract infection in users of progestin - releasing IUDs, except: ✓ Correct Answer: B. Decreased ovulation