Problems include irregular ovulation, hormonal disorders, damaged or blocked fallopian tubes, thick cervical mucus, or abnormalities of the uterus such as fibroids and endometriosis to name a few. If a woman keeps having miscarriages, this is also regarded as infertility.
Age is an important factor. From the age of 32, a woman’s chance of conceiving start to decrease, and from the age 35 that rate of decrease speeds up. Men aged 35 are half as fertile as they were at the age of 25, and from the age of 55, their fertility declines dramatically.
The cause of female infertility can be difficult to diagnose. It can arise from age-related factors, physical problems, hormone problems, and lifestyle or environmental factors.