Infertility means not being able to get pregnant after at least one year of trying (or 6 months if the woman is over age 35). If a woman keeps having miscarriages, it is also called infertility. Female infertility can result from age, physical problems, hormone problems, and lifestyle or environmental factors. Most cases of infertility in women result from problems with producing eggs. In premature ovarian failure, the ovaries stop functioning before natural menopause. The most common causes of female infertility include problems with ovulation, damage to fallopian tubes or uterus, or problems with the cervix. Age can contribute to infertility because as a woman ages, her fertility naturally tends to decrease. Hypothalamic-pituitary factors, Ovarian factors, Tubal (ectopic)/peritoneal factors, Uterine factors, Cervical factors, Vaginal factors can also result in female infertility.