Planned intercourse

Planned sexual intercourse (RSD) is the first type of treatment provided during infertilityDifficulty for a man or a woman to procreate as a result of a functional disorder or an organic lesion of the reproductive system, generally acknowledged after one year of regular, unprotected sexual relations., if the following conditions are met:

Ovarian stimulationMedical treatment designed to stimulate the ovaries, the follicular growth and development. This treatment usually allows several oocytes to become mature. may be associated with planned sexual intercourse. It allows to solve hormonal problems and is intended to restore ovulationThe release of the egg from the ovary. A mature follicle bursts, expelling the egg it contains into the fallopian tube. This usually occurs around the middle of the menstrual cycle. or to increase the number of follicles reaching maturity. It also supports the preparation of the endometriumMucous membrane of the inner wall of the uterus. During the menstrual cycle, the uterine lining builds up to the time of ovulation. If fertilization occurs, the egg may implant in the uterus, otherwise, the periods appear. The mucosa which had thickened for the implantation of the fertilized egg degenerates and is expelled from the uterus in the form of bleeding. for embryoTerm designating the early stages of development from conception to the eighth week of pregnancy. From the first cell division on, the two-cell stage, one uses the term embryo. implantationInstallation of the embryo in the uterine lining.. StimulationOvarian stimulation. Medical treatment designed to stimulate the ovaries, the follicular growth and development. This treatment usually allows several oocytes to become mature. involves drugs such as clomiphene citrate, or injections of hormonesSubstances secreted by the endocrine glands. Hormones act as chemical messengers for regulating metabolic processes throughout the body. (follicleFluid-filled sac in the ovary containing and nourishing the egg during its maturation. During ovulation, the follicle bursts and releases the egg. stimulating hormone, FSHFollicle stimulating hormone. Hormone secreted by the pituitary stimulating in the woman the growth of follicles inside the ovary and in the man the development of spermatozoa., luteinizing hormone, LHLuteinizing hormone. Hormone secreted by the pituitary gland, triggering on the one hand the expulsion of the ovum by the mature follicle and stimulating on the other hand the production of progesterone by the corpus luteum.; pregnancy hormone, hCGHuman chorionic gonadotropin. Hormone produced by the placenta during pregnancy. It causes the secretion of estrogen and progesterone by the corpus luteum to support the growth of the uterine lining. It also prevents menstruation in the first days of pregnancy.). These injections are given subcutaneously, usually by the patient herself or her partner. In all cases, when Ovarian stimulationMedical treatment designed to stimulate the ovaries, the follicular growth and development. This treatment usually allows several oocytes to become mature. is initiated, a vaginalRelating to the vagina. ultrasound exam allows the doctor to ensure that the ovarian response is controlled and the risk of multiple pregnancy is acceptable, before the planned sexual intercourse.

The right time for sexual intercourse can be determined by several methods:

Illustration du parcours des gamètes (schéma par Merck Serono)
Ilustration of the gametes' journeys through the vagina, uterus and Fallopian tubes (by courtesy of Merck Serono)

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