The female reproductive organs include several key structures, such as the ovaries, uterus, vagina, and vulva. These organs function in fertility, conception, pregnancy, and childbirth. The ...

Some men may not have the necessary ducts within their reproductive organs to allow sperm to move freely. Oligospermia is when a man produces less sperm than normal, also called low sperm count.

Similarly, pelvic inflammatory disease, an infection of the reproductive organs, can create adhesions that affect uterine positioning. The fifth major cause relates to growths or masses in the pelvis.