Symptoms depend on whether the<unk> al canal is partially or completely obstructed and on the patient's menopausal status. Pre-menopausal patients may have a build up of blood inside the uterus which may cause infection, sporadic bleeding, or pelvic pain. Patients also have an increased risk of infertility and endometriosis. Fertility<unk> al<unk>  may impact natural fertility by impeding the passage of sperm into the uterus. In the context of infertility treatments,<unk> al<unk>  may complicate or prevent the use of intrauterine insemination (IUI) or in vitro fertilization (IVF) procedures.
Stenosis of uterine cervix
Cervical mucus plug
Chronic deciduitis
Endometrial polyp
Vaginal yeast infection
Endometrial stromal nodule
Immature ovum
Vaginal trauma