It may result in the following: Hematometra (accumulation of blood in the uterus), causing pelvic pain or dysmenorrhea In premenopausal women, retrograde flow of menstrual blood into the pelvis, possibly causing endometriosis Pyometra (accumulation of pus in the uterus), particularly in women with cervical or uterine cancer Rarely infertility Symptoms and Signs of Cervical Stenosis Cervical stenosis is usually asymptomatic.