Definition and role of DHEA
DHEA (dehydroepiandrosterone) is a dehydroepiandrosterone precursor hormone, which is secreted by the adrenal gland and can be transformed into other androgens and estrogens in the body. DHEA is widely used to improve the success rate of IVF.

Under normal circumstances, female ovaries will gradually reduce the production of DHEA. The level of DHEA will also decline with age and the decline of ovarian function. However, supplementation of DHEA can increase the level of DHEA in the ovary, which may improve the quality of eggs and the success rate.
Timing and dosage of DHEA
For women who want to carry out IVF, the timing and dosage of DHEA are very important. Generally speaking, women should take DHEA for at least 3 months before preparing for IVF.
In terms of dosage, 25-75 mg/day of DHEA is generally recommended. Dose selection also needs to be adjusted according to women's age, ovarian function and other individual differences. In addition, while using DHEA, it is also necessary to regularly monitor ovarian function and hormone levels in order to adjust the dose in time.
Effect of DHEA on the success rate of IVF
Some studies have shown that DHEA supplementation may have a positive impact on the success rate of IVF. First of all, DHEA can improve the quality of eggs, improve the fertilization rate and implantation rate of eggs. Secondly, DHEA can also increase the level of AMH (antioxidant enzyme) in the ovary, which may have a positive impact on the growth and development of follicles. In addition, DHEA can also regulate ovarian hormone secretion, thereby improving ovarian function.
However, it should be noted that DHEA is not applicable to all IVF patients. For some older patients with decreased ovarian function, the effect of DHEA may be more significant. However, for some young women with normal ovarian function, the effect of DHEA may be very limited.
summary
Taking DHEA can increase the level of ovarian DHEA, which may improve the quality of eggs and the success rate of IVF. The appropriate use time and dosage are very important and need to be adjusted according to individual conditions. However, DHEA is not applicable to all IVF patients, and its effect is poor for some young women with normal ovarian function.
Therefore, before deciding to use DHEA, it is best to consult a professional doctor for advice and make judgments according to individual conditions. At the same time, in the process of using DHEA, it is necessary to constantly monitor the ovarian function and hormone level in order to adjust the dose in time to ensure the best treatment effect.