Causes
For pregnancy to occur, every step of the human reproduction process has to happen correctly. The steps in this process are:
* One of the two ovaries releases a mature egg.
* The egg is picked up by the fallopian tube.
* Sperm swim up the cervix, through the uterus and into the fallopian tube to reach the egg for fertilization.
* The fertilized egg travels down the fallopian tube to the uterus.
* The fertilized egg attaches (implants) to the inside of the uterus and grows.
What are 4 causes for female infertility?
