赴美试管婴儿前为何需服用避孕药？其目的是什么？

Eggs are female germ cells that usually mature in the ovary, measuring about 18 – 25mm in diameter. These eggs are released from the ovaries upon maturity, in a process called ovulation. Normally, a woman will produce only one egg per month, which will then be transported by the fallopian tube to the uterine lumen, ready for fertilization. However, before going to the United States for IVF treatment, doctors often advise women to take the pills for a period of time, which could raise questions: Why is this? The following is the explanation of the US little Monster test tube expert.

The role of taking birth control pills before IVF treatment:

1. Promote the synchronous maturation of multiple follicles

To improve the success rate of IVF treatment, doctors need to obtain enough eggs to control the fertilization process. To achieve this goal, physicians often use the oral short-acting contraceptive pill. These drugs can inhibit the secretion of gonadotropins and prevent the premature development of a certain follicle, thus increasing the uniform development of the follicles and the number of mature eggs. This helps to obtain multiple mature eggs of higher quality simultaneously in order to produce more embryos in the same tube cycle.

2, facilitate the arrangement of test tube cycle

In IVF treatment, the ovulation induction phase usually begins on the second day of a woman's menstruation. If a woman's menstrual cycle is very regular, this will not negatively affect the treatment. However, for those women with irregular menstruation, such as often delayed or early menstruation, doctors are difficult to determine the exact time of ovulation induction. With short periods of contraceptives, menstruation can be adjusted to a standard cycle, which helps doctors to accurately determine the timing of ovulation induction. In this way, doctors can better arrange the treatment schedule, evenly distribute the work burden, and can also save time for the expectant mothers.

3. Reduce ovarian physiological cysts

During ovulation induction, some women may develop ovarian cysts, which may adversely affect the effect of ovulation induction. Patients with polycystic ovary syndrome, due to hypothalamic-pituitary-ovarian dysfunction, may lead to endocrine disorders, increased body androgen levels, causing irregular menstruation, amenorrhea, infertility, acne and other symptoms. By taking oral contraceptives in advance, can inhibit the growth of follicles, so as to prevent the occurrence of luteal atrophy or luteal unrupture and other phenomena, reduce the incidence of ovarian cysts, promote the recovery of ovarian function.

4, produce pituitary drop adjustment effect

Ovulation therapy requires multiple follicles to develop simultaneously, potentially leading to high concentrations of estrogen production. These estrogens may cause early ovulation in follicular stages or early corpus luteal formation, thus reducing the success of ovulation. Oral contraceptives contain estrogen components, which can inhibit gonadal function, produce pituitary lowering effect, and help to avoid early ovulation of follicles before egg retrieval.

Matters to note during taking the pill include:

L 1. Sun protection: Birth control pills may cause chloasma, so special attention is needed to sun protection during medication to prevent pigmentation problems.

No, l 2. is strongly recommended