Otherwise, it continues to produce progesterone until the 10-12th week of pregnancy. Later the placenta takes over progesterone production. An inadequate amount of progesterone may lead to a condition known as luteal phase deficiency and infertility or recurrent pregnancy loss. Uterine lining tissue found outside the uterus, often inside the peritoneal cavity on the ovaries, fallopian tubes, uterus, bowels and bladder. It is a leading cause of infertility by affecting nearly all aspects of reproduction.
Fertilization occurs here.
Blockages or scarring of the tubes are one of the most common causes of infertility. It produces estrogen until release of the egg, after which it becomes the corpus luteum and secretes progesterone. After collection of the oocytes, they are mixed with sperm and using a catheter, are placed using laparoscopic guidance into the fallopian tube. These can be administered in the form of injections to stimulate ovulation. It is also used to treat endometriosis and to shrinkthe size of fibroid.